What is Mums The Word?
1.
to keep quiet about something
I heard Elaine's parents are out of town tonight and she's lonely! I'm gonna go over. Mums the word!
2.
to keep quiet about something; my lips are sealed.
mum means mmmmmm (the sound made when putting your lips together)
came from
"Seal up your lips and give no words but mum."
person 1: "Please don't tell anyone about my affair."
person 2: "Don't worry i won't. Mums the word."
See
Random Words:
1.
Breath that is so rancid that it would seem that there is a small man in the back of the subject's mouth stirring a pot of shit.
D..