Lyle: "I'm so shakey and bloated, I will never party again. I retire."
Sage: "Don't be a fag on Natturday... let's shotgun some Natty and start this game of wizard sticks."
Lyle: "You're such a partymonger! Where would I be without you? My Nattmare is over!"
The act of overzealously agreeing to do things with friends and acquaintances during a party or other social gathering despite the fact that ordinarily you would have no interest in doing so. Often followed by flaking out and not following through with the plan.