This is called the last straw phrase. It is not to be used faintly, once you use this phrase understand your may lose your life. It is the equivalent to spitting in a persons face.
Person 1: “Kyle you ain’t on nothing, we took your phone and money and you ain’t done anything”
Kyle: “what are you dumb? Suck your mum”
*FIGHT BREAKS* (You cannot say this phrase without some sort of conflict breaking out.
Kyle: “what are you dumb? Suck your mum”
*FIGHT BREAKS* (You cannot say this phrase without some sort of conflict breaking out.
by TheBritslangTranslator August 19, 2022
Get the Suck your mummug. 
by good peoples July 29, 2022
Get the ur mummug. ur mum
by Har Har Cowface August 11, 2022
Get the ur mummug. 
