Dirty War Helmet

A polite way to reference having a case of shit dick after having anal sex with an unprepared partner.

My wife wanted to blow me as soon as I walked in the house but I had a dirty war helmet after having a nooner with my coworker so I ran straight to the shower.

A bad case of smegma only added to the allure of my dirty war helmet.

Never go ass to mouth with a dirty war helmet.