I don't know that I'd say funk is imprecise..Take the case of James Brown who was known to dabble in funk..I think Bootsy might have met him a time or two. ;)

 The hardest-working man in show business couldn’t put on a show with the military precision of his ’60s revue without being a tough boss. Bobby Byrd, who sang backup vocals for Brown as one of the Famous Flames, gave me the details. He said that Brown’s fines were usually five or ten dollars, but they went up dramatically when he was playing at the Apollo Theater in 1962, where he was recording a live album: fifty or a hundred dollars for a miscue. Byrd remembered, “And James would do a routine when he fined you, counting off that hundred dollars. You’d whisper on the stage, ‘Man, get your part right,’ and then he’d see you and fine you for carrying on a conversation.”

Excerpted from the 2006 book Is Tiny Dancer Really Elton’s Little John?: Music’s Most Enduring Mysteries, Myths, and Rumors Revealed.

http://www.youtube.com/watch?v=kGdmY0N1qZA

Might as well throw Rocco Prestia from Tower of Power into the mix. Check out this sick lesson:

http://www.youtube.com/watch?v=X6x--c9SZak

Ok...both these guys embody FUNK...Leo Nocentelli from The Meters is greasy and sloppy and practicaly defines funk..Niles Rogers is tight and perfect and is also the personification of funk.

 https://www.musiclessons.com/youtube/share.cfm?v=4S-HuLUWbbc%2CV0k1GW0YSps&t=Leo%20Nocentelli%20and%20Niles%20Rogers%20%3D%20FUNK

You want funky, check this out:

Naw, just kidding. How about this... THIS IS ONE OF THE FUNKIEST BASS SOLO EVER!

http://www.youtube.com/watch?v=P1XKARygAK0