A Swedish term literally meaning lamb cutlet. In slang, it means an attractive woman who's just a little bit too young. She's clearly off limits, but my oh my, in a year or two...

Angela Hayes, Mena Suvari's character in American Beauty, is lammkött. Drew Barrymore was too, for a while. That's the thing about lammkött: it's fleeting, like little bits of lamb cutlet drifting down from the limbs of genetically modified cherry trees.

I heard this term a few years ago from a roommate, so if any native speaker has something to say, their comments should be treated as authoritative.