Jerk-off rhymes with:
bake-off, koff, scoff, skoff, bake-off, boff, christophe, croff, doff, goff, gough, groff, hauf, hauff, hoff, knauf, knauff, knoff, koff, lauf, mcgoff, off, poff, prof., roff, schoff, schroff, scoff, shoff, shroff, skoff, stauff, stoff, trough