When a male gets on an obese female's back and rubs his penis between her back tits until he ejaculates in her hair, thereby busting a nut in the filly's hair.
A word used to make up for gaps in conversation, when the speaker is not certain what they want to say next. Can be very annoying if used excessively.
Prime examples include: er, um, erm, and uh
Person 1: What's a black hole?
Person 2: Black holes are...um...they're uh...black holes, they...erm...er...
Person 1: You have no fucking clue, do you? You're just using filler words now.
A (generally) teen-age boy who spends the majority of his time masturbating into a tube sock. Sock fillers tend to be socially awkward, often standing slack-jawed while in the presence of their female classmates.