NFL Star Jacoby Jones -- Competes In Drag Show ... Loses

Super Bowl hero Jacoby Jones couldn't pull off a miracle when it counted ... coming up short in a janky drag show on a cruise ship ... and TMZ Sports has the footage.

It all went down on a Baltimore Ravens fan cruise to the Bahamas -- where part of the entertainment was an adults-only "game show" ... which included a low-budge drag competition.

Jacoby -- being the good sport that he is -- put on his game face ... and an ill-fitting bra ... and strutted his stuff around the stage.

Unfortunately, he just wasn't fierce enough ... and came up short ... despite rocking a fabulous Louis Vuitton purse.

Keep workin' it ... there's always next year.