A Woman who has a child, most likely the person that the statement is directed at, and is having sexual intercourse with the person using the term on a regular basis.
Is obviously the Australopitecus who gave birth to you and is probably fat so thats why everyone makes jokes about her.Wait a seconddon't you know who your mother is????? (didn't want to upset the fellow orphans researching about their mother true identity,so I suppose "follow your dreams and never give up!"
Nigel: Do you what Your Mother Jokes and your mother have in common
Derek:Idk Bruh.
Nigel:Even though they are old they are still enjoyed by everyone.
Derek:F@#k you,Nigel!
A human I (and many 12 year olds on Xbox) have took part in consensual sexual intercourse with while you cry in the corner, but this is also used as a comeback when you are saddened by someone who has made you upset.
Offender: HA HA, I HAD SEX WITH YOUR MOTHER!
Victim: Ummm… WELL YOUR MOTHER
*oppisite*
Offender: HA, YOUR MOTHER IS MY BABE
Victim: *excessive crying*