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1.
n. a person who is sometimes overly sentimental in the provision of affection and endearment towards their partner.

They may not always be that way, nor is it necessarily a bad thing (although it is unbearable to others if witnessed).
Philemon: You're just the tastiest, butteriest, nommiest biscuit in the whole wide world, aren't you?

Baucis: No, *you're* the tastiest, butteriest, nommiest biscuit in the whole wide world.

Philemon: Oh, we're such mushballfaces. /butterflykiss

Hermes: d'omg, you two are insufferable.
by a. fort December 17, 2011