having a beef Share definition Flag When two grown men stand around crying unashamedly. First used by college humour (Jake and Amir). Q- So what were you doing with Jake over there? A- We were just having a beef, bro. having a beef by DevilzLexicon April 26, 2012 0 0 Get merch Get the having a beef mug. Buy Now — $32.95 See more merch