Green’s Dictionary of Slang

botch n.2

[SE botch, an eruptive sore, an ulcer, a plague-spot, thus Deut. 28:27 ‘The Lord will smite thee with the botch of Egypt, and with the emerods, and with the scab, and with the itch, whereof thou canst not be healed.’]

(US) gonorrhoea.

[US]E. Stephens Blow Negative 177: Boy, if some guy who knows I got the botch sees me coming out of here he will never come in again.