look up any word, like tinder bombing:
 
1.
Trippin' on NyQuil or DayQuil...
acting as such...
Duuuuuuuude... are you quillin'?
by Ze P. Page February 15, 2005
 
2.
NyQuil or DayQuil induced haze often times associated with highly important meetings or cheap drug binges
Secretary: "You OK?"
You: "Quillin, but I'll make it."

or

Girlfriend: "What's up with Roger?"
You: "That crazy bastard has been Quillin for the past four days and he seems to like it."
by cynicali August 23, 2007