A straw-feminist is a made-up version of a feminist that doesn't really exist, used in straw man arguments against feminist ideas.
- hate men
- hate sex
- think all men are rapists
- call nearly any violation "rape"
- are Angry feminist mobs
- want women to become systematically dominant over men
- want to outlaw marriage
- are "ugly, hairy lesbians"
These are misrepresentations of most feminist viewpoints, and bringing them up in a discussion is an example of derailment.