A sticky or unusual situation or someone who is rude. From the Spanish word gacho, sez JS. (Pronounced goch as in Gocha!') {Also the Georgia Alliance for Community Hospitals.} Example: After having been short-changed at the ticket office, he exclaimed: Man, that's gach.
GACH
Meaning of GACH in English
Slang English vocab. Английский сленговый словарь. 2012