Gonna Be Dumb, Better be Tough's definitions

cowboy hard

Condition in which one worked so hard he can't get a full erection, but the callouses developed riding in the saddle makes the penis feel hard.

Mike: After all these years on horseback I think I may have given myself ED.

Jane: yeah but at least you're cowboy hard

Mike: *silence*

by Gonna Be Dumb, Better be Tough April 21, 2014