boff up Share definition Flag To study or revise; become informed about a new subject. Possibly Jackspeak (UK Royal Navy slang). Can also be "buff up". I don't know anything about it; I'll have to boff up on it tonight. boff up by Strigulino November 8, 2013 0 0 Get merch Get the boff up mug. Buy Now — $32.95 See more merch
