mother brother

Your brother from the same mother but from different fathers.

Mother Brother:
A half brother which has the same mother as you, but a different father.

by DAMANI March 20, 2007

ur mother a brother

A phrase not to be used too often. Once this is said, the world enters a vicious downfall. The most devestating thing anyone could say.

Dan: ur mother a brother
Phill: *spontaneously combusts and the whole world implodes*

by bigmassivecuntbag May 11, 2018

ur brother mother

the worst insult in all of history

Jeoff: ur mom gay
Bill:Ur mom lesbian
Jeoff:ur granny tranny
Bill:ur pappy trappy:
Jeoff: Ur sister mister
Bill: Don't make me do it!
Jeoff: Do it pussy

Bill: ur brother mother
(The sun rams into earth)

by ursistermister5 May 13, 2018

Ur brother mother

When you are arguing and ur friend says ur sister mister u say ur brother mother. And you win the argument.Simple as that.

Brad:Yo Carl ur mom gay
Carl:No u
Brad:No no u
Carl:Ur dad lesbian

Brad:Your mom and dad both gay together

Carl:Ur granny tranny

Brad:Ur sister mister
Carl:Ur brother mother

Brad:*evaporates*

by Carl6996 March 18, 2018

Baby Crazy cru cry crazy baby baby dead as lover bab6 mother nigga brother

A bad song you wrote as a kid

Baby Crazy cru cry crazy baby baby dead as lover bab6 mother nigga brother Other other fatty funder

by Α January 26, 2022

Ur brother mother

The most powerful response to anything and should never be used. If used the sun will engulf the solar system and destroy god himself

Billy: you know what ur granny tranny
John: don't do this Billy
Billy: ur sister mister too
John: well ur brother mother
*Billy's head pops and the sun bursts destroying the solar system and causes the whole galaxy to collapse*

by Meemeeyungboi May 11, 2018

Ur Brother Mother

The most dangerous of all phrases. A simple derivative of "ur mum gay" and "ur daddy lesbian."

Faggimus: Ur granny tranny!
Clitorimus: Ur sister mister!!
God: Ur Brother Mother.

*The Universe itself expands at a rapid rate and proceeds to become one black hole

by Faggimus Clitorimus May 11, 2018