GBMF 

Great Big Mother Fucking

That is one GBMF hooker!

GBMF by w10gooner September 28, 2008

gbmfr 

A Hashtag used by the Nebraska Corn Husker s that means Go Big Mother Fucking Red

Huskers- Score a Touchdown

Someone’s Middle aged dad who remembers the skers glory days- GBMFR

gbmfr by Mr Crabbs October 3, 2022

GBMFYOYO 

Good Bye Mother Fucker You’re On Your Own!

“GBMFYOYO!” Said by orthopaedic registrars to their on-call colleague when leaving the hospital

GBMFYOYO by canguro November 21, 2023