After a long day of sex, you wake up and find your penis tired and soft and pinkish. This means that you had long and great sex, maybe not enough but you cummed and you pushed it too hard and got a mark from having "that" sex
"Honey, i think we had too much sex!Or maybe i pushed too hard! I got a penis marking!"
Originally from fumes eminating from the mouth as a result of felatio. Later to include various "flavours of penis" and the aroma thereof.
1. Hey, Julie has penis breath!
2. Oh yeah, well you have Mentos Penis Breath.
3. ... or Tic-Tac Penis Breath.
4. I don't get penis breath... I give it.