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The girl rule that your friends are always more important than your boyfriends. Basically the girl version of bros before hoes, except the title doesn't sound like an insult to women. Also, there's an unwritten sub-rule: if you catch your friend's boyfriend cheating, YOU MUST TELL HER ASAP!
Sometimes called chicks before dicks.
Amy's boyfriend was being such a jerk to her BFF, so she dumped him, even though she still really liked him. What an awesome friend Amy is, putting sisters before misters like that!
116👍 17👎
only used as a last resort once your homeboy hits you with to many no u this cannot be countered until we find the holy trinity
carl: your mom gay
me:daddy tranny
carl:no u
me:your sister a mister
carl ;evaporates
80👍 15👎
your sister a mister is possibly the worst insult ever created. It will destroy an entire dimension whenever it is used. Another language had to be made to create this phrase, and this is the rough translation. Calling someone's sibling trans is easily worse than Your mom gay, Your dad lesbian, Your granny tranny and Ur grandpap a trap are hardly insults copared to your sister a mister.
God: Are you a little bitch?
Me: Your sister a mister
God: *Fucking dies on the spot
25👍 4👎
worse than your mom gay your dad lesbian and your granny tranny
fred:your mom gay
joe: rour dad lesbian
steve: your granny tranny
brandon trembling from all the bad insults: your sister a mister
fred, joe and steve all explode
9👍 1👎
This word is only used after your vicious enemy uses the world ending saying “ur pappy trappy”. “Ur sister a mister” can reverse the world ending and causes a blackhole to suck the earth into a bottomless pit of darkness.
Bill-ur pappy trappy
*world starts to end*
Jon-ur sister a mister
*world stops ending, and blackhole shows up infront of the sun*
Stephen Hawking- my theory was right. Only the mere saying of “ur sister a mister” can cause a black hole
21👍 5👎
The unwritten law that dictates that a the wishes of an unmarried woman's or girl's female friends trump those of a men she wants to have a relationship with. This law exists to protect said woman from being roosterpecked or whipped and her boyfriend's a pig or a man slut.
Better known as ladies first and to hell with your boyfriend.
Yo, lady, don't let that male chauvanist pig tell you what to do. He thinks you're just another piece of ass. After all, it's sisters before misters.
254👍 105👎
This is five times worse than ur granny tranny. Every time this is said the fabric of space a time rips.
Bob: ur mom gay and ur granny tranny.
Josh: Don’t make me say it bro.
Bob: you won’t Bitch.
Josh: ur sisters a mister.
*Bobs head explodes and the fabric of time and space rips destroying Jupiter*
10👍 2👎