Top definition
A sexy email sent to a friend or acquaintance in the hopes that s/he will take the bait and a hookup will ensue.
I'm really stressed these days because I sent out a bunch of flirtcasts yesterday and haven't heard back from any of them.

I'm supposed to be working on a grant but, instead, I'm spending the whole day flirtcasting.

I did some pretty heavy flirtcasting with that woman who works at the Drake and now I'm paranoid I've pissed her off.
by Darren O'Donnell February 25, 2007
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