"Foe Yay" can refer to:

* BelligerentSexualTension: Romantic partners aren't enemies per se, but they get into arguments that get physical...and then very physical.
* DatingCatwoman: Explicit romance between enemies.
* FoeRomanceSubtext: In Universe romantic subtext between enemies.
* FoeYayShipping: Shipping between arch-enemies.
* VillainousCrush: A one-sided romantic interest by a villain.
* WarShip: Shipping between people from hostile factions.
* WellExcuseMePrincess: Two partners can't stand each other at first, but their mutual hatred starts to come off as downright cute.

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