A penis with only a head and no shaft.
Similar to a Chode
When Anthony asked his girlfriend to "work the shaft", she laughed and made him cum.
1: Anthony's girlfriend can't give him a proper blow job because he has a Chode Diddly
2: Can be used on its own even when someone with a Chode Diddly is not present.
Ex. Usually used when ecstatic. "CHODE DIDDLY!"