When a guy puts calamari rings on his thing and proceeds in moist coitus with his lady friend.
Yeah, Tyrone gave me the Mundelein Masher last night and I was all about it!
by moremonstermash April 21, 2016
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High school in Mundelein consisting of atleast 3 different gangs, superficial girls, horny boys, drug addicts, and the occasional band geek. Mundelein High School is known for their losing football team and porn-addict teachers. People who go to Mundelein High School are most likely have an ACT score of 14. A majority of the school population is Mexican.
"WOW I'm so glad we go to Stevenson instead of Mundelein High School!"

"Yeah me too..did you hear about that teacher?"

"And the gang fights."
by You Dont November 9, 2007
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