slip a mickie 

put something in someone's food or drink without their knowledge...such as a roofie or another mind altering drug

You better be careful, he might slip you a mickie or something.

slip a mickie by roofie slipper December 3, 2003

slip a mickey 

the act of an arbitrary slip of a possibly coma inducing opioid.
Alternatively used in a comedic nonchalant fashion with little actual relevance

Alex: Yo did you see toby just slip a mickey to nick?
Josh: Yeah n**** he got some serious balls

slip a mickey by realtackshooter August 2, 2023

Slip a mickey 

A term used to refer to put a sleeping pill in one's beverage.

"I better slip a mickey in (insert name here)'s drink before s/he comes back so I can stash his/her birthday presents."

Slip a mickey by Sindur December 29, 2004

slip a Mickey 

when you're dead tired after spending a day at Disney World, but you still sneak in a trip to pound town with your girl before passing out

My feet and legs were on fire after walking around Epcot all day but I was still able to slip a Mickey before going to sleep.

slip a Mickey by dis niqqa December 8, 2021

Slip a mickey 

When Andy drugs a person “usually well endowed” then puts his lips around your penis!

Old fuck cheese slipped me a mickey every night this month!

Slip a mickey

Slip a mickey by CaptainStabbins74 January 1, 2020