Duckman

The series chronicles the adventures of Eric T. Duckman, a perpetually horny, rude, selfish, venal, incompetent private investigator. He lives with his sister-in-law who hates him, three children who don't respect him, and his comatose mother-in-law. His work life fares no better, with his partner who regularly outclasses him. Duckman attempts to solve cases for anyone who'll pay him, hoping he just might get laid in the process. (Summary by CloseFriend)