Swapping rhymes with:
wapping, whopping, chopping, copping, cropping, dropping, flopping, hopping, lopping, mopping, popping, propping, shopping, sopping, stopping, topping, wapping, whopping
Swapping sounds like:
sabine's, sabins, safing, saipan's, sapanski, sapiens, sapienza, sapping, savannas, savin's, saving, savings, savings', savings's, saxophones, scavenge, scooping, scoping, sczepanski, seeping, seven's, sevens, shaping, shaving, shavings, shipping, shobana's, shobanna's, shopping, shopping's, shoving, shuping, sieving, siphoning, siphons, sipping, skibinski, skipping, skyhopping, sobbing, sofians, sopping, soybeans, spain's, span's, spang, spanish, spank, spanky, spanning, spanos, spans, spawning, spawns, spence, spens, spewing, sphinx, spiffing, spinach, spines, spink, spinks, spinks's, spinning, spinosa, spinoza, spins, spong, sponge, sponges, spongy, spoofing, spoons, spunk, spunky, spying, subbing, subpoenaing, subpoenas, supinski, suspense, svensk, svenska, sweeping, swiping, swooping, sypniewski, szczepaniak, szczepanik, szczepanski