A penis or any other penis-like phallic object which is small enough to give genetically-disadvantaged men a confidence boost.
Did you see how small it was? God damn confidence booster right there.
A blowjob from a friend to make your insecurities go away
Bro, you should go get a confidence booster from your friend Anna. You need to love yourself some more.
The confidence one feels having learned where to place, and when not to place, a comma.
Tired of suffering from comma insecurity, Charles studied and achieved comma confidence.
when you're not sure if it's a shit or a fart but you take your chances
"i couldn't hold it in any longer at my daughter's recital so i took a confident turtle"
To lose your trouser confidence is when you fart but you are scared it will turn into something wet and far much worse
I had a madrass, 5 pints of guiness and half a dozen whiskeys last night. My trouser confidence is not high
The Smoking Version of Taking a Shot of Alcohol a.k.a Liquid Courage
Guy 1: Go get the girl's number
Guy 2: Ight but first gimmie some Aerosol of Confidence
When someone give the expression of being macho and grandiose. But when the time comes to deliver, they under fulfil and you are left severely disappointed.
Friend A: Did you see Dave last night at the party? He was on fire!
Friend B: ohh I was with him last week, hes nice to talk to but once you get to know him you will see he's just small dick confidence.