John: Hey jerry, was that test in math hard today?
Jerry: Oh, most deff!
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most deff= most deffenitly
dewd that most deff kix ass
this most deff is the best weed in all the land!!
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Most Definetley: a saying that means most definetley. use when you are drunk,stoned or on the verge of pukeing.
Guy1:hey dude you wanna go party?
Guy2:Mo Deff man! Mo Deff!
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An abbreviation for "definitely totally" in other words, a term of agreement
Isa: want to go to the party with me?
Lilly: Deff Totes!
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Fo Deff
adverb
Full Meaning: For Deffinetly.
A verbal contract meaning that you must do this action.
Also, less strictly used as to agree with what is being said.
Girl One: "Can You Come Over This Weekend?"
Girl Two: "Fo Deff!"
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When men have taken a good slathering of beer and start shouting at eachother while turning up the TV even louder. Common amongst football fans.
Heeeeyyyyyy! Who stole the damn chips?!!!
What yardline are then on now?!!! Heeeeeyyyyy!!! Kenn!!! Grab me another beer willl ya?!!!!
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