Going commando of the upper body for the female. (AKA: Going braless and wearing a shirt)
Chad: I like how you went femmando today, Manda.
Manda: Ho, f*** yourself.
'Fuckin Lazer Sights' is a reference to the Rainbow Six Seige character, Thatcher. Usually used in a deep English accent.
Greg: Hey Bill, you want to come to my house tonight?
Bill: Fuckin Lazer Sights.
Greg: Ok, see you there.