Top Definition
Meaning the act of hammering your own children in a sexual way.
Gadd reffering to Glam Rock star and convicted paedofile Gary Glitter's real name, and Hammer reffering to a sexual act.
One person to another.
"Is it true that he is a slightly deviant person?"
"I hear he is a hammers gadd"
by Tri Fector September 28, 2006
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