a person who hates people who are dating for no reason other then they either they hide their significant other for awhile until they mention them or they hate them just because they are dating
im dating but that guy is a dater hater
your mama left you so did your girl
we are former daters
1.Someone who breaks up with their boyfriend so they can date his brother instead
2.Someone who uses a guy cuz they want to make his brother jealous
Taylor: did u hear about katy?
Jessie: yes i did, she's so a brother dater