MMA's Gabi Garcia -- Brazilian Boob Cover-up ... For New Tattoo (VIDEO)

MMA powerhouse Gabi Garcia got some new chest ink in Brazil -- but they wouldn't let go under the needle without covering up her lady parts first.

Check out the video of Gabi's tat artist in action ... followed by the final product.

FYI, Gabi's a fighting legend in Brazil -- she's a member of the International Brazilian Jiu-Jitsu Federation Hall of Fame ... and she's racked up a 2-0 record in the Rizin Fighting Federation.

She's also a protege of Anderson "Spider" Silva ... who says she hits like a ton of bricks.

#Beast