Acronym for Angry Iowa Running Back Hating God, the malevolent entity that continually smites the running backs of the University of Iowa football team.
Be it through academic ineligibility, arrest, suspension, transfers to other schools, repeated injuries (especially of the knee variety) or other causes, Iowa running backs suffer attrition worthy of a critically endangered species. AIRBHG tends to fell multiple running backs every year without cease, so Iowa can never replenish its backfield.
AIRBHG is a cruel god; fear Him.
"Jewel Hampton is going to be great this year if he can avoid tearing his ACL again!"
"Sorry dude, AIRBHG got to him already: Hampton just tore his other ACL."
"Welp. Time to start drinking, I suppose."