LFGM… with an emphasis on the F?

Slugger Pete Alonso has taken to celebrating big Mets moments — and there have been quite a few in recent days — with a pelvic thrust.

On Friday at Citi Field, the first baseman’s seventh-inning grand slam knotted the score against the Guardians at 7, with Alonso meeting his baserunners at the plate, propelling himself into the middle of their revelry with his hips.

It wasn’t just his teammates getting the getting victory fireworks — Alonso euphorically gave it to the dugout fence after Francisco Alvarez’s game-tying single in the 10th inning against the Guardians before Francisco Lindor’s walk-off hit.

Alonso went ahead and made a weekend out of it, marking the Mets’ fifth straight win and a series sweep of Cleveland with his fellow infielders, meeting up for a synchronized thrust.

Alonso nor any of his teammates have addressed their new ritual, though it’s certainly garnered some attention as the wins — and humps — pile up.

“This is kind of the weirdest thing I’ve ever seen,” Boomer Esiason said on “Boomer & Gio” on Monday. “I’m not really sure what they’re trying to get across.”

“This is strange,” co-host Gregg Giannotti added. “Also, it’s not only that, you get Pete Alonso in the dugout who humps the railing when something goes well for the team when he’s in the dugout. He gets up there and just starts pounding the railing.”

As the @oneshiningmets account posted in a Twitter thread, it’s hardly the first time Alonso has used his hips for something other than bashing a home run — and based on how the Mets are streaking, it won’t be the last.

“They’ve started to win now with the humping,” Giannotti said. “So it’s gonna be a thing the rest of the year.”