when someone like a friend,teacher, or parent ask what you are doing or ask a question you always say "your mom" in the sentence
john-"what did u eat last night"
you- "your mom"
what I'm doing tonight ;)
You: what are you doing later?
me: Your mom
the biggest thing ever created
me: I'm going to see my mom
someone: your mom is very big
This is the most cliche insult in the known universe
Guy 1 Hey bob your dumb
Guy 2 so's your mom