Originally published on ProWrestlingSheet.

Calling John Cena and Nikki Bella "Dumb and Dumber" would normally be a jerk move ... but for Halloween this year, it's completely appropriate!

The couple Tweeted a video of their costumes Saturday -- the orange and blue suits donned by Harry and Lloyd in the first "Dumb and Dumber" movie.

John Cena and Nikki are no strangers to good couples costumes ... they've worn pretty awesome matching outfits over the past few years, including Ron Burgundy/Veronica Corningstone from "Anchorman" and Jabba the Hutt/Slave Leia from "Star Wars."

According to reports, Cena is currently on a hiatus following his loss to Alberto Del Rio at Hell in a Cell -- and should be making his return around December.

Happy Halloween!