Chad Johnson -- Celebrating CFL Deal with Fast Food and Stogies

Chad Johnson is going to his special place to celebrate signing with the Canadian Football League today ... under the Golden Arches.

Fresh off signing a deal with the Montreal Alouettes, Johnson tells TMZ Sports he is going to mark the occasion with a nice cigar ... and a trip to McDonald's. As for his order of choice ... Chad tells us he's going with a #1 meal (Big Mac!!!) with extra cheese and no onions.