Stealthcap
Any form of headgear purposely used to hide your untamed hair. Either because you are too lazy/tired/in a rush to comb it.
Tim:"Dude, hurry we are going to be late!"
Alex:"Fine, I'll just put on my Stealthcap. No one will know."
Alex:"Fine, I'll just put on my Stealthcap. No one will know."