What is Hash Mark?
1.
Track marks left by underpants rubbing against a soiled
Girl, glancing at the floor- You don't have a hash mark in your boxers.
Fellow-You seem surprised.
Girl- Oh, most of the guys that come in here have them. 19 out of 20, I'd say.
Fellow, puffing out his chest- Well, then, thank you much. Is that what I smelled walked in here?
Girl-No, that's just my upper lip, from the
Dirty Sanchez I had for breakfast.
Fellow- I thought you said I was your first!
Girl-Oh, yeah, you're right. I guess I must have just shit myself.
Fellow, relieved- Oh, Thank God!
See
2.
Diagonal stripes sewn to the lower part of the sleeve of a Navy enlisted man or woman's uniform. Each stripe represents four years of service.
You can tell that guy's a lifer by all his hash marks.
See