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1.
Creepily hitting on a girl untill someone is forced to kick your ass

"dude look at him ralfing on kayla i think im gonna go push him down that hill over there"
by Numbahwon May 08, 2008
 
2.
The sound created by somebody Noisily vomitimg due to excess alchohol consumption, comes from somebody noticing that on occasions somebody retching sounds like they are saying ralf
"hey Jim are you ok?" No ive drank too much im gonna ralf...." What the fucks that noise" oh thats just Jim ralfing, he's shitfaced"
by Jonnyboy8726 November 05, 2009