The instant in which a man realizes he is going to have a premature ejaculation and decides to pull out and give cunnilingus so that his partner does not realize his lack of stamina.
During sex, Joe demossed so that Tracy would not realize he was lousy at sex.
by GetJenj August 16, 2009
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A person with a large ego, someone who thinks of themselves as perfect or god-like, and to be good at anything such as being funny, attractive, or just plain cool

This person is a huge douche, being so egotistical, and is prone to making fun of the mentally handicapped or uttering the phrase: "You have NOOOOOOO friends!!!" to any and all people which it dislikes
1."How was the party last night jack?"

"It was fun until some guy showed up and started being a huge demoss."

2. "I used to think he was cool until i found out that he was a demoss..."
by Papasacs September 28, 2011
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super chill, cuteee, lazy, caring, adorable, loved by teachers and friends, generally has adorable dimples and a cute smile. Makes everyones day and over all amazing person. Hes a keeper
that guy is so partick demoss we should hang out with him more.
I wish i was like patrick demoss.
by smiley9495 October 27, 2011
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a tastless Democrat (tree hugger)who hates war, because his bitch ass would never fight in a war
by jhohn September 12, 2003
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billy is a bald kid that is semi chuby and likes to lick his sister kelly
billy demosse rock - what do anteaters eat
bailey- your a dumbass
by bailey cus December 20, 2011
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