What is the meaning of Troco?

Alternative form of trucco (“lawn billiards”).

barter; exchange, switch

first-person singular present indicative of trocar

to barter

change (small denominations of money given in exchange for a larger denomination)

exchange; switch (act of exchanging or switching two thing)

a small amount of money

payback (act of revenge)

first-person singular present indicative of trocar

Source: wiktionary.org