Self-circumcision 

Surgical procedure executed with nothing more than your own zipper, generally under the anesthetic effects of beer, rum, vodka, whiskey or similar beverages.

1) Man! Do you recall if last night i was attacked by a furious wild animal?
- Dont think so, maybe you just got self-circumcised.

2) OMG dude!! I wonder if during last night's party I nailed a long-nailed chick or if I just executed a Self-circumcision.

Self-circumcision by Antonio MH August 4, 2009

Self circumsition

When you masturbate without cutting your nails first and you cut your dick.

I jerked off last night and didn't cut my nails so I had a little self circumsition

Self circumsition by Jsummers33 January 18, 2017