Green’s Dictionary of Slang

clipped adj.¹

(US) circumcised.

[1927		(con. 1914–18) L. Nason Three Lights from a Match 296: [to a Jew] ‘You clipped-nose son of a bitch!’ shrieked the officer].
1997–2002		Alt. Eng. Dict. 🌐 clipped circumcised.
2000		P. Cornwell Last Precinct 171: ‘One of the nurses got a peek at what he’s packing. Unclipped.’ Marino’s jargon for uncircumcised.

In compounds