A nut shot. A punch/kick/strike to the groin, intentional or otherwise, specifically to somebody with (presumed) testicles.
Named after Paul “The Irish Dragon” Felder who, in his capacity as UFC commentator, seems to have witnessed a disproportionately high number of groin strikes.

To “geld” is to castrate.
DC - Ooo looked like a bad cup shot there Mikey!
MB - That’s right DC, the ref calls time and the fighter has 5 minutes to recover while we chalk up another Felder-gelder 😃
PF - Guys, please, don’t…
by pasticheaf July 19, 2022
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