Gambling's rhymes with:
siblings, bilings, billings, bowling's, carling's, ceilings, chitterlings, collings, couplings, cowling's, cowlings, cowlings', darlings, dealings, drilling's, ducklings, dumplings, dwellings, earthlings, failings, feelings, filings, fillings, gatling's, gillings, grumblings, hollings, hotaling's, hulings, killings, mailings, mullings, nestlings, pilings, railings, rawlings, reschedulings, retailing's, rollings, ruling's, rulings, rumbling's, rumblings, samplings, saplings, schilling's, schillings, seedlings, sellings, shellings, shillings, siblings, skillings, snellings, spelling's, spellings, stallings, sterling's, stillings, stirling's, stollings, tailings, underlings, wheeling's, wranglings, yearlings, zwerdling's