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French Canadian sacre (swear) which can be roughly translated as fuck or damn. It comes from the retaille d'osti which is a kind of religious bread.
«Mon osti de chien sale de tabarnak de caliss de criss !»
«Big Dave c'est po une osti de rafiole, mais toé t'est le roi des fifs»
«Think big, 'sti» - Bob Gratton
Osti by Pandours November 21, 2019
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One residing in the former east German State, on the eastern side of the Wall. (Ost = East in German).
Die Ostis sind so geizig.
Osti by Echoed November 4, 2007
Related Words
Canadian-French swear word that every Quebecois uses.
Usually said before another French swear word to “enhance it”
“shit j’ai oublier ma fille a l’école… osti de crisse la il faut que je dépense du gas.. osti de tabarnak!” (shit i forgot my daughter at school… osti de crisse! Now I need to waste gas.. osti de tabarnak!”
Osti by brojacob March 7, 2023

ostin moment 

An Ostin moment is when you say something unexpected, or stupid.
Person: I’m taking woods I, but I plan on going college.

Person 2: Ostin moment
ostin moment by Greg1890 January 21, 2021

4/4 String Ostinato in D Minor

A suspenseful and ominous song that every sailor knows means death and impending doom. Usually heard out at sea, avoiding this song should be your number 1 concern when sailing.
“Oh no, Spongebob, quick, Reel it in! Can”t you hear the music?! That’s a 4/4 String Ostinato in D Minor! Every sailor knows that means death!” - Eugene H. Krabs
someone with a colostomy (usually while in prison) who sells his colostomy hole for sex.
That guy who got shot in the stomach wound up with a colostomy and will go to jail to become an ostitute.
ostitute by dr.mayhem August 27, 2006
Little flat bread distributed in churchs.

Used as a swear in Quebec in the usual form of esti
1. j'ai mangé une ostie à l'église
2. Toé mon esti!
ostie by soulvacuum January 6, 2005