Comedian explains catching women in terms of sport fishing with emphasis on the catch and release aspect. Men like to fish and sports fishing is different from fishing for food
In sports fishing you go all out for the big one when you catch the fish you take a few photos so you can show your friends and brag about your fishing ability, but then you let it go.
Chasing women is kind of like that, and once you let it go you don't want it to jump back in your boat.