Green’s Dictionary of Slang

1. sexual intercourse.

1980

E. Folb Runnin’ Down Some Lines 210: ‘Chingazo’ (act of intercourse).

2. a blow, fighting, in fig, sense, a ‘hard knock’.

1985		‘Jennifer Blowdryer’ Modern English 58: chingazo (n): A blow. chingazos [...] a fight, a scrap.
1988		Interviewee in Ethos 430: Chingazos [blows, fighting] is a way of life here.
1993		L. Rodríguez Always Running (1996) 159: You’re a vato loco. For you the world is one big chingaso [hard knock] after another.

3. (also chingaso) the boss, the leader [lit. fucker n. (3)].

1990

S. Morgan Homeboy 152: Yeah, I’m A.B. [...] Head chingaso in the Aryan Brotherhood.