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To be inebriated to the point where one loses control of their actions. Examples may include drunk dialing, no restraint over bodily functions, streaking, etc.

As made famous on "Three Sheets."
"Sorry I hit on your mom last night, I was Steve Mckenna'd."
by Alex10 January 18, 2008
When out drinking with your buddies, the person who is the drunkest of the group or always engaging in drinking the most is "Steve Mckenna"... So when you are this person you are made an example to Steve Mckenna from Three Sheets, thus being called Steve Mckenna'd.

EX: Last night Joe was so Steve Mckenna'd!!
by andy tdk March 24, 2008