Dude, stop lunchin, it's gonna be cool.
*uninhibited giggling nonstop*
Hahaha, you're totally lunching.
"Maybe we should try to write this report in pizza sauce!"
Yeah, no, dude, stop lunchin out and get to work.
1) Freak out
2) Be sporadic
3) Be generally incoherent
Originally used by pot smokers of the DC area in order to mark someone who matched one or more of the above definitions.
2) Yo, Melei just started lunchin' to "Thriller"
Jose: Yo quiero Taco Bell
John: Don't worry Matt, he's just lunchin'.