Top definition
Refers to the phrase "awesome".
Osem is the biggest snack company in israel, and so Israelis and Hebrew speakers around the world use it as a slang to "awesome".
Justin Bieber is the opposite of OSEM.

I just had sex! It was OSEM!
by TheArchibald April 17, 2011
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Aug 11 Word of the Day
A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.
"My boyfriend has a total case of brain worms. He told me the cat was bugged so the Feds could listen in on us having sex..."

or

"You totally stumbled over that entire sentence. Can't speak English all of a sudden? What, do you have brain worms?"
by _Jez_ October 03, 2009
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2
Osem is a word commonly used from Montanski Pustinqci in Bulgaria
Geogre:How are you Lubcho
Lubcho:Osem
by Koisamtam November 21, 2018
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