a bloke who acts like a woman. Can be applied to a lack of gaming skills, as in
I kicked Nathan's arse on xbox golf last night, he played like a complete womanburger!
The act of a threesome whereas the male (meat) is between the two ladies (buns) therefore creating the vision of a burger.
I got together with Janie and Lucy last night, got drunk and then we had a womanburger session until the wee hours in the morning!