When you use a fruit rollup instead of a condom. Sticky in many ways
Hot Girl: I thought you ran in the store to get condoms?
Dude: I did, but they had fruit rollups! and they are cheaper!
Girl: Oh....Is it safe to wear?
Dude: who cares! its a fruit rollup!
Girl: You should have asked me if i was down for a stickydick Rollup!
Doing a sloppy job of cleaning up after jerking off and some cum remains and gets stuck to your boxers. The next time you need to take off your boxers, you have to peal your dick off, thus sticky dick.
"Man, I had such bad sticky dick this morning that I almost peeled the skin of my dick."