compinche

compinche
masculine or feminine noun
1mate (British), buddy (United States)

compinche [com-peen’-chay]
noun
1Bosom friend, comrade, confidant, crony. (Colloquial) (m)
(Yo compito, yo compita, from Competir, V. PEDIR.

compinche (familiar)
sustantivo:masculino_y_femenino
1 (amigo) pal; (familiar) mate; (familiar) buddy; (EEUU) (familiar)
2 (cómplice) partner in crime; accomplice