hobunkin Share definition Flag A friends "bunking up", often not invited, to have sexual relations with a so called "HO" who they would not like to bring to their own residence. Dude, so the other night like Sean came over and was hobunkin again with this pimple face trog. hobunkin by ian_man November 27, 2011 0 0 Get merch Get the hobunkin mug. Buy Now — $32.95 See more merch