v1: To completely, unequivocally fuck something up.
v2: To completely, unequivocally fuck someone over.
v3: To break someone off in the colon.
2. That consultant really cornholed us on that shitty website design. The motherfucker even charges non-profit organizations to fuck over their sites. See also: tfsengineering.
3. Damn, it smells like something died in here. I think Teem corhnoled Road Kill in the broom closet, and used RK's spit for lubrication.