Word used to express disappointed yet accepted state of undesired feeling, situation or physical state. A vocal statement of realization - that things are f-ed up and you can't change it. "That's erf'ed up."
You just woke up from a gigantic night of partying... realize head is pounding and stomach about to hurl. Instead of groaning, which could mean anything, you mutter "ERF!!" and those laying around the room also waking with hangovers acknowledge your state and also chime in with an affirmative, "ERF!".
by BleenieTheCat October 17, 2005

"Yo did you hear what happened the other night?"
"Yeah, I can't believe Suzy ERFed that dude in the back of her Dad's Camry."
"Yeah, I can't believe Suzy ERFed that dude in the back of her Dad's Camry."
by Bruuuce November 05, 2007

1. Dude last night i smoked a 50 and got so erfed.
2. Yo my girl erfed me so hard last night i cant stand straight.
2. Yo my girl erfed me so hard last night i cant stand straight.
by Kevin Forero May 08, 2008

by Agua February 02, 2022

Mom: Hey josh what's that noise?
Josh: Im erfing someone mom...
Mom: Ok josh just do what your doing...
Josh: THanks mom!
Josh: Im erfing someone mom...
Mom: Ok josh just do what your doing...
Josh: THanks mom!
by CockBlocker99 December 10, 2010

A word that signifies frusteration.
by Mer October 17, 2003
