20 inch blades
20 inch blades usually means balla or whatever, but here is an alternative.

Horse-hung, unshaven(blades), gay male, sexually oriented human beings.
Ball slapper, cum guzzler, 20 inch blades, swallows..

Sammy - My god Rodney, your 20 inch blades have GOT to go~!

Rodney - Well fine mister, I'll go do it right now.