Thug-o-saurus!

A Florida man dressed as a dinosaur allegedly choked his girlfriend because she refused to go to his pal’s Halloween party, according to a report.

Patrick Gallway, 19, of Port St. Lucie was sporting an inflatable T-rex costume in preparation for the bash Saturday night when his 23-year-old girlfriend said she’d rather watch a movie with her friends, according to The Smoking Gun.

Gallway flipped out and channeled his inner predator — allegedly pushing her to the ground, mounting her and pushing her neck against the floor of his home, according to a police report cited by the outlet.

His girlfriend later told cops she was in a “strained relationship” with her younger beau, who had “demanded that she attend the Halloween party with him.”

Cops spotted redness on the right side of her neck and arrested Gallway when he returned home from the party at 2:45 a.m. Sunday, according to The Smoking Gun. He was charged with battery and booked in St. Lucie County jail.

As Gallway pulled his car into the driveway after the bash, an officer “observed that an inflatable dinosaur costume was present in the front passenger seat.”