Stupid, not smart, unintelligent. This person thinks she's funny, but is no where near that. She laughs at her own jokes. This person may also be slow, retarded, funny looking. Perfect example: Billy Robinson.
Is often overheard by the one gay and lame person in your vicinity making it impossible to use crude slang to describe shitty situations.
Nicole: Damn I failed my test! This is gay.
Counselor: Gay is an offensive word. What if a homosexual overheard you?
Nameless friend: Yeah... use lame instead.
Counselor: Lame is offensive too. What if a lame person overheard you?
Nameless friend: How often will I be around a lame person.
Counselor: I'm lame, one of my legs is shorter then the other.