Definitions by AverageBiBoy

Deja BJ

When you receive a blow job that reminds you of a previously received blow job

Mike: yo dude I slept with felicity last night and talk about a deja BJ

Andrew: it reminded you of Stacy that’s crazy bro!

When you recieve a BJ equally as good to a previously received BJ

Mike: yo man i got deja BJ when I got head from felicity last night

Andrew: bro it reminded you of Stacy, that’s crazy man.