Slicker rhymes with:
clicker, flicker, licker, liquor, schlicher, schlicker, bicker, bricker, clicker, dicker, ficker, flicker, fricker, kicker, knicker, licker, liquor, macvicar, mcvicar, mcvicker, picker, quicker, redicker, ricker, schicker, schlicher, schlicker, schricker, sicker, snicker, sticker, stricker, thicker, ticker, vicar, vicker, whicker, wicker, zwicker, zycher
Slicker sounds like:
salazar, salguero, salser, salzer, salzhauer, schlager, schleicher, schleiger, schlesser, schlicher, schlicker, schloesser, schlosser, seliger, selsor, selzer, silguero, slacker, slager, slasher, sleeker, slicer, sligar, sliger, sliker, slugger, slusher, slusser, sulcer, sulser, sulzer