Buying the mustard Share definition Flag After giving someone a blowjob, the 'blower' swallows the 'blowee's' love juice. "Geez Bob, have you been drinking pineapple juice? I had no issues buying the mustard tonight!" Buying the mustard by Kraner October 27, 2005 0 0 Get merch Get the Buying the mustard mug. Buy Now — $32.95 See more merch