Long Island mom charged with smashing 14-year-old girl in the head during high school spat

A furious Long Island mom allegedly got mixed up in an argument between her daughter and a 14-year-old classmate — and wound up bashing the youngster in the head with a huge Stanley water cup until the teen was bloody, cops said.

Toni Monroe, 35, was busted after allegedly flipping into a rage when her 15-year-old daughter “began exchanging words” with the victim outside Brentwood High School around 11 a.m. Tuesday, Suffolk County police said in a release.

That’s when Monroe — who claimed she was at the building to complain about bullying during summer school — allegedly smashed the younger teen, leaving her with a gash to the head that required 17 stitches. 4

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“Her mom just came in and started beating me with the cup,” the victim, identified as Madison Evans, told WABC’s Eyew