A term commonly used when a person crashes in games at the worsttimes.
Your team is fighting in a guild raid and your healer crashes.
Guy 1: OMG did our healer just pull a gwen on us?
Guy 2: YEAH, FUCKIN HELLM8! He sure was pulling a gwen!
To drink extremely quickly and in excess, causing the guilty party to become blackout drunk and vomit on all surrounding surfaces, causing a general panic as well as putting a damper on the party that follows. Bonus points for every surface the inebriated party covers in vomit (the more colorful the better!), and for every person that calls 911 on your behalf. Furthermore, one could be said to be "Pulling a Compitello" if they smoke after forgetting their inhaler, causing them to have an ahstma attack, if they ruin a party, if they forget their shoes, or any number of other party fouls.
Origins: Italian (Compe- complete, Tello- fucking mess)
"Damn, that girl just yacked up half a gallon on your carpet, she's really pulling a compitello tonight.