When you have a beefy side (meaning stomach fat) that is what is considered Side Bacon
Nick: Check out ma Side Bacon
Brayden: Would you look at that
A chick that is so enormous that when seen naked looks like a slab of bacon with lips. Can usually be found on fraternity house bathroom floors being dogged by a "fuck anything that moves" member.
I opened the bathroom door and there's Brendan banging some fat chick - She looked like a side of bacon with lips.
When your side bitch is fat
Last night I picked up some new side bacon at the Wendy's drive-thru