Body Boggle

From BoardGameGeek:

From the back of the box: Two players from each team use their hands and feet to spell out words on the letter mat. The first word's not too hard to stretch and spell, but just try rearranging hands and feet to spell the next word. And the next. And the next...It's the word game that's truly body boggling! To win, your team must spell 20 words or more.