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1.
1. The act of royally screwing something up, usually followed by being a cry baby and looking like a pothead.
"He pulled a Glennon!"
by HokieFootballFan September 15, 2007
22 18
 
2.
A common expression used as a substitute for the word "deity" or "god"
"Praise Glennon"

"Oh my Glennon"
by Glens December 24, 2013
2 0
 
3.
The hair that grows on the back of your neck. Usually comes is two strips - one for each side of your neck.
Dude look at your freakin neck! Your Glennons are thick. Get em cut!
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