The rapper was out in Los Angeles Wednesday, hooking up the homeless with hot meals, cold drinks and warm clothes for the winter.

Lil Pump hit the streets of Skid Row, serving up corn dogs, turkey dogs, cheese dogs, french fries and lemonade ... and passing out jackets, pants and socks to 600 people.

Pump teamed up with a couple of companies for the good deed ... joining forces with My Friends House Foundation, Hot Dog on a Stick and his buddy, RD Whittington, the owner of luxury celeb car company Wires Only, who dropped $7,000 on the charity event.

If the carnival fare sounds different as far as givebacks go ... that's because we're told Lil Pump and RD wanted to pass out food that was nontraditional, so mission accomplished there.