Top definition
A person uses this phrase to describe their sluggish condition when they have not drunk their usual quota of coffee to get going in the morning.
"Dude, why are you so slow and stupid today?"

"The coffeemaker broke. I stopped by Starbucks on my way to work, but I'm still under my cup."
by Commentator X December 13, 2009
Get the mug
Get a under my cup mug for your barber Rihanna.