Betty White will get a lesson in fist bumping when Howie Mandel stops by "Off Their Rockers." In the video clip above, Mandel teaches White how to do his infamous fist bump -- and then some.
As the two do various bumps, Mandel learns what happens when White blows something up ...
Mandel guest stars on "Off Their Rockers" on Tuesday, Feb. 19. Look for White to prepare her house to accommodate Mandel's germaphobia. On Tuesday, Feb. 26, Mandel's "America's Got Talent" co-star Nick Cannon pays White a visit.
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