funk
1. A music style associated with the 70s that emphasizes the importance of a groove (and sometimes sensuality)

Funk musicians, especially the bass player, place notes between beats, but the first beat is always emphasized and returned to in the pocket. It is common for the electric guitar player to mute often in strumming patterns. Funk needs drum and bass to be funk. You can dance to funk, hence funk 1 is derived from funk 2.

2. Sweat (African American vernacular English). Often associated with sensual acts (e.g. dancing, mating), although now more obsolete than funk 3.

3. A foul odour. Possibly the result of funk 2.

4. Replacement for "fuck" in "fuck" expressions (e.g. funk you, funked up).
1.
Rob: - What is "funk"?
Chris: - Check out "Bootsy's basic funk formula" on Youtube.
Rob: - Lame. Can't you just explain it?
Chris: - Nope, I just dance to it. You have to feel it to understand it.

2.
Rebecca: What did you do tonight Rob? Where you out dancing?
Rob: Yeah, how did you know?
Rebecca: The funk's all over your t-shirt.

3.
Hitch-hiker: Is that a corpse in your back trunk?
Stranger: No, that's just some prawns making funk.
Hitch-hiker: Seriously?
Stranger: Seriously.

4.
Mom: - Fuck me!
Dad: - Honey, the kids are watching.
Mom: - Uh. Thank me. Thank me. That's what I said.
Kids not buying it: - That was definitely the f-word.
Mom: - Yeah... uhm.... you know: Funk me! Yes funk! We were just doing the funk. ... You know like James Brown.
Kids: Who's he?
Mom: ...
Dad: He's the sandman. Now back to bed kids.
Kid 1: I wanna be sandman when I grow up!
Kid 2: Mom, why was sandman in the kitchen yesterday?

Not to be confused with funk dance. That's how dance studios refer to the way people dance in music videos, like Britney Spears.