Check your six

A term often used and popularized by the military to check at your 6 o'clock position. Which would be right behind you at any given point.

Sergeant: Private, check your six and tell me if you see any bogeys.

Private: Yes sir!

by CallmeCj December 30, 2013

check your six

An expression used to inform someone that there's a target at their 6 o' clock position.

1: "Check your six."
2: "... Damn."
1: "Told ya."

by n00bert May 3, 2007