camo up

Ultimately from camouflage, from camo plus the aspect marker up.

camo up (third-person singular simple present camos up, present participle camoing up, simple past and past participle camoed up)

1. (informal, military, hunting) To put on clothing, make-up, etc. with a camouflage pattern, to wear camouflage.
   • December 5, 1998, “A Civil War”, in West Palm Beach Post, page 6E:

     The week prior to the Army-Navy game is anything goes at West Point. Cadets and hard-core instructors “camo up” and wear BDUs (battle dress uniforms) in preparation for the looming clash of the mighty Army black knights and the wimpy, undisciplined Navy midshipmen.

   • 2010, Greg Hastings, “You must lead yourself first”, in Doug Crandall, editor, Leadership Lessons from West Point, page 38:

     […] No one told them anything about camo, and it takes them ten minutes to do it right.” ¶ “Well, we have five minutes and everyone has to camo-up,” the first sergeant explained patiently.

2. (informal, military, hunting) To camouflage one's person or equipment, to hide or obscure from view.
   • April 4, 2009, Nick Ferraro, “Fans, police, veterinarian hope to rescue Oreo the goat”, in St. Paul Pioneer Press, Dakota County local:

     The plan is to have the veterinarian “camo up,” maybe by using a hunting blind, he said, to get close enough to take a shot with a tranquilizer gun.