A female NYCHA employee was arrested Monday for grabbing a male co-worker’s groin last month and making a lewd remark, law enforcement sources said.

Deja Mason — a 27-year-old janitor at Fiorentino Plaza in East New York — was arrested at work at 2:17 p.m. following the Jan. 25 complaint, police said.

“She allegedly grabbed his testicles and said something to the effect of, `I’m almost off probation, when you gonna eat it?’ ” a law enforcement source said.

She’s been charged with forcible touching and harassment.