Thumma rhymes with:
mumma, aardema, abohalima, abouhalima, akiyama, akyanama, alabama, aldama, algamaa, algoma, alima, alkema, alma, altima, anathema, anselma, aoshima, aoyama, aroma, arzama, aselma, asthma, auriemma, bahama, bajema, balderrama, bancoklahoma, bergsma, bernama, beukema, bierma, bima, blepharisma, boersma, bonnema, boomsma, bosma, bouma, bouwsma, braaksma, bramah, bronkema, bruinsma, buikema, bultema, burma, burmah, bylsma, calma, cama, carcinoma, carma, charisma, choma, cima, cinema, coloma, coma, comma, cosima, cosma, dalma, dama, decima, delima, delma, demma, depalma, derma, desma, dharma, dhlakama, dilemma, dipalma, diploma, diprima, docudrama, dogma, douma, drachma, drama, duma, eczema, edema, elgersma, elma, ema, emma, emphysema, enema, enigma, erma, eurofima, fama, fatima, fatimah, fema, fennema, filma, fima, firma, foodarama, forma, fujiyama, fukushima, fukuyama, gama, gamma, gemma, glaucoma, goma, grama, grima, groma, guadarrama, gyuhama, halama, halima, hama, hansma, harima, helma, hibma, hilma, hirayama, hirosakima, hiroshima, hoeksema, homa, irma, ishikawajima, jama, jansma, jarema, jemima, jima, joakima, kageyama, kajima, kama, karema, karma, kashiyama, katayama, kawashima, ketema, kingma, kitajima, klema, klima, kodama, kojima, koyama, kozma, kuchma, kuriyama, kuzma, l'alma, lama, lasumma, ledesma, ledezma, lema, lemma, lemme, leoma, lerma, lima, lipuma, llama, lodema, loma, louima, luma, luoma, lymphoma, maddamma, magma, mahatma, mama, mamma, manama, maruyama, maxima, maxpharma, mcmanama, medema, melanoma, mellema, melodrama, mesothelioma, miasma, miedema, moma, momma, montezuma, multnomah, muma, mumma, murayama, nakajima, nakama, nakashima, nakayama, naoma, neoma, nishiyama, norma, noxema, nujoma, obama, oklahoma, oma, optima, osama, oshima, oyama, pajama, palma, paloma, panorama, papilloma, parma, performa, perma, petaluma, pharma, pima, plasma, pleasurama, poma, postema, postma, prima, puma, rama, reforma, reitsma, retinoblastoma, riemersma, rima, ritsema, roma, rozema, sabunuma, saitama, sakuma, salama, salema, saloma, sama, saouma, sasayama, sazama, schaafsma, schama, schuitema, scleroderma, scoma, selma, sema, septima, sharma, shima, shiroma, sietsema, sigma, sikkema, sima, slama, sloma, soma, somma, sonoma, steensma, stigma, stroma, sugiyama, suma, sumatoma, summa, surma, sygma, sytsma, tacoma, taima, tajima, takashima, takayama, takeshima, talsma, tama, tanguma, thelma, thima, thoma, thuma, tokuyama, tolsma, toma, torma, toyama, trauma, troma, tuma, ulima, ultima, uma, valderrama, varma, velma, venema, verma, viedma, vielma, vilma, wiersema, wiersma, wilhelma, wilma, winema, wylma, xoma, yakima, yokohama, yokoyama, yoneyama, yuma, zelma, zima, zuidema, zulma
Thumma sounds like:
taima, taiwan, tam, tama, tamanaha, tamayo, tame, tami, tamiami, tamm, tammany, tammen, tammie, tammo, tammy, tan, tanen, taney, tani, tania, tann, tannen, tanney, tanu, tanya, tatem, tatham, tatiana, tatman, tatom, tatum, tatyana, tawana, tawney, tawny, tayman, teahan, team, teaney, tedium, tedman, teehan, teem, teen, teena, teenie, teeny, tehan, temme, ten, tena, tenn, tenney, tenny, teton, thaden, thain, thaine, tham, than, thane, thanh, thano, thayne, theano, thein, them, theme, then, theon, theone, thiamin, thiem, thieman, thiemann, thieme, thien, thima, thin, thine, thoen, thoene, thom, thoma, thoman, thomann, thome, thommen, thon, thone, thum, thuma, thuman, thumann, thumm, thun, thune, thyme, tian, tiananmen, tiano, tiedeman, tiedemann, tiein, tieman, tiemann, tien, tienanmen, tim, timan, time, timm, timme, timmeny, timmie, timmy, timon, timoney, tin, tina, tine, tinman, tinney, tinnin, tinnon, tinny, tino, tiny, titan, titania, titanium, titian, titman, titone, todman, tom, toma, tomaino, toman, tome, tomei, tomeo, tomey, tommie, tommy, ton, tone, toney, toni, tonia, tonie, tonini, tonn, tonne, tony, tonya, tooman, toomey, toon, toone, toothman, totem, totman, totten, tottenham, totton, town, towne, townie, toyama, tuhan, tuition, tuma, tuman, tumey, tummy, tuna, tune, tunney, tunny, tuomi, tuten, tutino, tutton, twain, tweten, twin, twine, twomey, twyman, tynan, tyne