Lb

[PussyCat]

meaning little bitch. Often used to describe whiny, complaining Noobs who are constantly bitching.

[Tanya Shivari]

In a Fraternity, LB means Line Brother.

[Raeanne Dimick]

Little Boy; Often used when describing a male being too cocky or Immature for his age. Hanging around older women and trying to look older for his actual age.

[Rihanna]

Short for pound ( as in Marijuana)

[PussyCat]

It means like back.
Usually used on [instagram]

[Tanya Shivari]

Lover Boy usually associated with Cc or C

[Rihanna]

Pound(s) (in weight).