a fictional piece of equipment commonly used as an alibi. used in situations in which if the truth were known it could be detrimental to the person trying to cover it up.
Person 1: Whoa dude what the hell happened to your face? I heard you got in a fight at the club last night!
Person 2: Nah man, I just wrecked my ten speed yesterday.
Unknown person 3: NO WAY!!! I wrecked my bike and had the exact same injury! WEIRD!!