badcabulary
the overuse or wearing out of a given word.
the following use of "dude" would be badcabulary:
Dude #1: Yo, dude, that movie last night was awesome dude.
Dude #2: Right on dude... dude, do you want to grab lunch?
Dude #1: Yo, dude, that movie last night was awesome dude.
Dude #2: Right on dude... dude, do you want to grab lunch?