When an advert (online or offline) or a general public marketing stunt involves a rather attractive and bewitching female to stimulate either:

a) enough interest that you will click the advert (online) or visit their site (offline).

and/or

b) interest in buying their product(s).

Sometimes the link between the attractive woman and the actual product can be ridiculously tenuous.
"Those Facebook ads with that cute chick on are total wallet bait. The service itself sucks!"

"Dude convention girls are such wallet bait, I spent 20 minutes chatting to 'Jenny', I don't even *like* cars."
by Matthew1471 April 10, 2009
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