A straphanger was busted after she used a pipe to smash at least three windows on a Queens MTA bus, according to cops.

Brittany Eeps, 31, of Brooklyn, was arguing with another woman on a Q55 bus on Jamaica Avenue near 80th Street around 6:15 p.m. Thursday when the driver pulled over and booted one of the women from the bus, police said.

Eeps stayed on board — but then allegedly pulled out a pipe and went on a window-smashing rampage.

Police showed up and arrested Eeps, who was charged with criminal mischief, authorities said.