Laff rhymes with:
laugh, sielaff, assaf, behalf, braff, calf, carafe, chaff, fraph, gaf, gaff, gaffe, giraffe, graf, graff, graph, haff, half, laugh, naff, paff, pfaff, raf, raff, scaff, schaff, shaff, sielaff, skaff, staff, staph, taff, taffe, unitaf, yaffe
Laff sounds like:
lab, laba, labauve, labay, labbe, labe, labeau, labo, labov, labove, labow, laboy, laevo, lafave, laffey, lafoe, lafoy, lahiff, laib, lap, lape, lapp, lappe, laub, laube, lauf, lava, lave, laveau, lavey, lavi, lavie, lavoie, lavoy, lavy, lay-up, layoff, lb, leabo, leaf, leafy, leap, leave, leavey, leavy, lebeau, lebo, leboeuf, lebouef, lebow, lebowe, leeb, leep, lefauve, lefave, leff, leffew, leib, leiby, leif, leiva, lep, lepe, lepp, leppo, lev, leva, levay, leve, levee, levey, levi, levie, levy, leyba, leyva, lib, libbey, libby, liby, libya, lieb, liebe, lief, life, liff, liffe, lifo, lip, lipa, lipe, lipp, lippa, lippe, lippi, lippo, lippy, liv, live, livia, livvie, llovio, loaf, lob, lobb, lobbia, lobby, lobe, lobo, lobue, loeb, loepfe, lollipop, looby, loop, loopy, lop, lope, lopp, loup, loupe, love, lovie, lp, luba, lube, lubow, luby, luebbe, luff, lullaby, lupa, lupe, lupi, lupo