Here's the synopsis: Two guys working on car with open hood. One guy pulls out a Snickers bar, sticks it in his mouth, and starts to eat it as he leans over the open hood. Other guy sees this, puts other end of the bar in his mouth and starts to eat it. They meet at the middle (a la "Lady and the Tramp"), then recoil after a brief pause. They then discuss how they just kissed, and one says "Quick! Do something manly!", they they pull out some of their chest hair. The End. Or, an AP synopsis:
BEST AD FOR A LOUD BAR: Snickers. In this spot from Mars Inc., two auto mechanics accidentally kiss after being unable to resist chomping on opposite ends of a Snickers bar. The cure for this inadvertent moment of intimacy? "Do something manly!" says one. Both proceed to rip out handfuls of chest hair.
You can see the ad at afterthekiss.com, which features four different endings. ("Chest Hair" is the one that aired during the Super Bowl)
I'll admit, the endings are a little funny - I'm reminded of the Futurama episode "Amazon Women in the Mood" which featured Bender, Fry and Zapp Branigan making a number of women jokes. In the commentary, the writers said that they decided it was OK because after every single one of them, the joke-teller got physically hurt somehow, which sorta reminds me of this ad. But seriously, come on. Two guys kissing is a horrible accident that must be rectified by a super-manly act?
So, screw you, Mars, Incorporated. I will write an angry email soon. I'm surprised GLAAD isn't on the case already...
Edit: I may have misinterpreted the ad, as others are suggested it was meant to be mocking of homophobic attitudes. If that is the case, sorry for getting all riled up for nothing.