Green’s Dictionary of Slang

booger n.1

[SE bugger]

1. (US, also bugger) a piece of nasal mucus.

[US]DN I 214: [A ball of muscus in the nose is] Called bugger in the South, the u sound like [u].
[US]L.W. Payne Jr ‘Word-List From East Alabama’ in DN III:iv 292: booger, n. A dried flake of mucus from the nose: used of children. ‘There’s a booger in your nose.’.
[US]L.R. Dingus ‘A Word-List From Virginia’ in DN IV:iii 181: bugger, n. [...] 3. Dried nasal mucus.
[US]E. Thompson Garden of Sand (1981) 181: He sometimes still ate buggers surreptitiously.
[US](con. 1960s) R. Price Wanderers 74: Eeeeuwww! You got a booger on your shirt!
[US]E. Folb Runnin’ Down Some Lines 32: You so black dey make Bosco from your boogers.
[US]N. Heard House of Slammers 180: The prisoners who behind his back called him a bugger-eater.
[US](con. 1930s) C.E. Lincoln The Avenue, Clayton City (1996) 7: I’ll [...] bumble out your nose like a booger!
[US]D. Hecht Skull Session 136: Thinking up jokes involving farts and boogers.
[US]J. Lerner You Got Nothing Coming 162: Like some hideous extraterrestrial spider, the green body of Scud’s booger is slowly detaching itself, one slick strand at a time, from the wall.
[US]Mad mag. July 6: Potrzebie [...] The stage a booger is in between being in the nostril and being in the mouth.

2. (W.I.) in pl., trainers.

‘Jamaica Child’ in Ashton et al. Our Lives (1982) 22: I used to dress up in short khaki trousers, with a shirt to match. I had my pair of boogers on and was ready for school.

In compounds

boogersnot (n.)

a general term of abuse.

[US]S. King Stand (1990) 657: Harold can be a dear but he can also be a real boogersnot.
[US]S. King Christine 528: ‘You’re such a boogersnot,’ she said.