When one wakes up with an erection.
So I slept in the same bed as my mom last night...it was really awkward because I woke up with A.M. Lumber.
by Alex "Dildo Baggins" April 14, 2007
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When midnight shift workers proceed to go to the bar and getting completly wasted after their shift ends instead of going home and going to sleep.
Charles: Dude tonight has sucked we should totally arrange some mayham-in-the-A.M.
Twon: For sure, this night has been a complete bag of ass.
by nbroo April 19, 2009
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a low-grade exotic dancer, usually not the most attractive dancer in the establishment, who performs for the hung-over, non-tipping patrons during morning hours.
The burnt-out, stretch-marked alcoholic can barely afford her skanky clothes with the meager wages of her a.m. stripper job.
by no-one of consequence November 13, 2003
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(From the Latin) Ante Meridiem-Bowel Movement.
When you go #2 in the morning.
Hey guys, sorry I'll be late for breakfast, but I'm not worth a damn until i have my A.M.-B.M. See you in 8 minutes!
by Big Crappa' December 20, 2009
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sleeping for such a long time that you miss the a.m. of an entire day.
Fred planned to skip the a.m. and succeeded when he fell asleep at 11 p.m. and woke up at 1 p.m. the next day.
by AlexCK September 2, 2008
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A remedy for morning wood. In the a.m. drain the female partner typically does not climax. Rather she is a willing and generous participant. Typically she would not have been able to climax that morning anyhow. Best case scenario - occurs while spooning so woman does not have to move from the position in which she was sleeping.

Outcome: Male is satisfied and extremely appreciative. Woman has gained massive amounts of goodwill with minimal effort.
"Honey, thanks for the a.m. drain. Can I take you out to dinner tonight as a thank you?"

"Yeah, I wasn't much in the mood this morning, but he was. Has an a.m. drain. Now I'm off the hook for a while..."
by steshaheats March 6, 2010
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Verb. The act of consuming copious amounts of alcohol before 12:00 noon. To begin drinking adult beverages early in the day, as early as 7:00 AM, which is when many liquor stores open. Also a way of managing a hangover with "The hair of the dog" method.

Many hardcore alcoholics practice Mayhem in the A.M. daily, starting the day off with a shot and a beer before everything else
"It's 7:15 AM and Robert was leaving the liquor store with plans to be drunk before 10:00. He is going to have some Mayhem in the A.M."

"I drank so much last night the only way today is going to go anywhere is for me to continue with some Mayhem in the A.M."

"John is a big drinker. Every morning is Mayhem in the A.M. for him"
by Ceaser21 April 6, 2017
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