The bra that gives horny men false hope by giving flat-chested women impressive-looking breasts and cleavage.
The reason they call it the wonderbra is because men wonder where the titties went when the bra comes off.
by bigtones June 15, 2007
Get the wonderbra mug.
The source of ungifted women's happiness, and false advertisement for men.
"Nice rack, girl!"

"Thanks..." ~Removes bra~

"What the HELL!? Uh, gotta go!"
by Morbidia May 30, 2005
Get the wonderbra mug.
Man's greatest invention; it's a breast-enhancing bra that lets small-breasted women look as though they've got an impressive rack.
All my friends think my girl's got big cans, but she doesn't...she's just wearing a WonderBra to make her chest look bigger!
by 'Drew August 16, 2003
Get the WonderBra mug.
The crushing realisation that everything is not entirely as it seems but you're already committed, in exactly the same way as a rat in a trap could be also be described as committed.
Dude1:"Just got a fantastic deal on a new phone, check it out! its like ten a month!"
Dude2:"That's the introductory offer, after the first three months it's fifty, for the next three years..."
Dude1:<Looks at phone, feels blood draining from face, has Wonderbra moment>
by Ice in the cider May 25, 2011
Get the Wonderbra moment mug.
A duck wearing a wonderbra refers to a very unlikely event.
My going out with you is as likely as a duck wearing a wonderbra.
by Cranberry Bob November 27, 2019
Get the duck wearing a wonderbra mug.