Used in a conversation to prove a point.
Bobby; My dog did a backflip today una
RS; Nah your chatting ****
Al-Wi; Truss, don't believe her
Bobby; mums life she did, the backflip was mad still.
by bobsR January 28, 2018
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A term used in order to make someone know you're telling the truth 100% and that if you are lying your mother will die.
Scott: Did ya hear C-Dogs mum went to jail fam?
Greg: Dat some bullshit
Scott: Na bruv I swear on my mums life.
by Afran January 15, 2016
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When you are a young or single mum who feels they missed out on their youth so start doing reckless and youthful things. Such as dating someone super young, wearing revealing or younger looking clothes, spending less time with your kids and more time partying. Just living it up away from your kids in general. Like Kourtney Kardhasian and her partying, young beau and interesting wardrobe change.
She's definitely going through a mum life crisis, her boyfriend is 20 years younger than her and she's been out everyday this week.
by Doox95 May 15, 2018
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It’s a term / quote to use to be certain you or whoever you’re talking to is telling the 100% truth.
Joe: yo g wys
Jay: nuffin bro wys
Joe: on top of the Eiffel Tower on a joint g
Jay: swear on your mums life mate
Joe: na das dryyyyy
by Swear on your mums life December 27, 2018
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