i bet my left nut on it! 

a bet you feel you cant lose. a guaranteed win of a bet thus there's no way i'd be able to pay you with my bollock

the sun will come up in the morning i bet my left nut on it!!!

i bet my left nut on it! by sir curly February 5, 2007

Kiss My Left Nut 

something that you say when you want to be provocative (especially if you are a chick) or use as a sarcastic comeback or reply. This expression is similar to kiss my ass and suck my balls

Bob: So Tina, did you like that movie?

Tina: yeah, I though tt was pretty good

Bob: Good? Dude, it completely sucked!

Tina: well you know what jerkface? You can kiss my left nut!

Kiss My Left Nut by kohina November 11, 2009

You gotta be fucking my left nut 

Usually said when something would make your life harder to live in, or would make your tasks harder to do

“Bro did you hear, Mr. Tomasulo input our math test grade” “You gotta be fucking my left nut”

You gotta be fucking my left nut by Real Ram October 9, 2019

my left nut 

not the right one

Hey my left nut hurts!
You mean your right one?
No, I mean the left one!

my left nut by augris May 27, 2009

Saggy left nut 

1) An expletive denoting the absurdity of the situation.

2) A term applied when something of little importance is valued more than it should be.

1) John: What in the name my saggy left nut do you think you are doing?

2) Jack: This is really important! We need to fix this now.
Jane: Yes, or else you will certainly lose your saggy left nut.

Saggy left nut by The Killer Squirrel August 25, 2010

my left nut 

literally, someone's left nut

bro, you lookin like my left nut

my left nut by meh left nut September 12, 2016

suck my left nut 

an insult used to spite someone, derived from the fact that the right but is clearly superior

josh: ur annoying

me: we you can SUCK MY LEFT NUT

suck my left nut by a kool persono April 2, 2020