"Basketball Wives" star Nia Crooks has been charged with misdemeanor battery for pimp slappin' the taste out of Jennifer Williams' mouth back in January ... TMZ has learned.
A rep for the Broward County State's Attorney's Office tells us ... officials decided to file the charge on April 10 ... after Williams filed a criminal complaint.
If convicted, Nia faces up to a year in the slammer.
During the incident, which aired on last week's episode of "Basketball Wives" -- Nia can be heard threatening to slap Jennifer ... to which Jennifer replied, "I wish you would." Her wish was granted.
4:39 PM PST -- Nia's lawyer Marc David Seitles tells TMZ ... "We will vigorously defend Nia against these charges. The women on the show executed contracts expressly accepting the risk that a physical altercation could occur."
The lawyer adds, "Given that Jennifer herself has previously instigated fights on the show, to cry foul now is absurd and a desperate attempt for publicity and money. We will fight until Nia is vindicated."