Referring to a straight man who is down for an MMF threesomes as a "Manticore" starts to make it fun again.
A poly triad who seem incompatible but get along really well is a Chimera.
Horny teen boys who don't know how to talk to people are Goblins.
A bi non-binary person into threesomes is an Alicorn.
A dude who pressures his partner to have an MFF threesome but won't do an MMF threesome is a Hippogriff.
A partner who always seems to break/lose your stuff is a Rust Monster.
A relationship that develops slowly through momentum and laziness is a Gelatinous Cube.
A burly gay man who is also wise is an Owlbear.
A tanned and muscular himbo is an Umberhulk.