When a weightlifter develops his upper body to be heavily muscled, and never trains his legs which are inordinately undersized by comparison.
Jim: "Hey Steve look at that guido muscle head training his upper body for the 5th time this week. He needs to start training his legs."

Steve: "Well that's exactly why everybody calls him Puppet Legs!"
by Jasper LaPrizrak July 12, 2021
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While being in a state of merry intoxication, the inability to control one's legs.
Sod me, I really don't think I should have had that tenth pint of beer and the bottle of vino collapso, I've got the puppet legs on and cant walk to get to the car.
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