Blocking rhymes with:
clocking, flocking, locking, unlocking, clocking, cocking, docking, flocking, hocking, knocking, locking, mocking, restocking, rocking, shocking, socking, stocking, undocking, unlocking
Blocking sounds like:
balchunas, balconies, balkanize, balkans, balking, belching, belgians, belgium's, bellyaching, bilking, blackening, blackens, blackmun's, blackness, blaesing, blakeney's, blasing, blazing, bleaching, bleakness, blessing, blessings, blossoming, blossoms, blowguns, bluejeans, blushing, bolognese, bolognesi, bulging, bullishness