Gneiss

1) A type of rock.

2) An alternative spelling of "nice."

This is some gneiss rock.
Or
This is some gneiss rock.

Amish Roundhouse

A sexual act in which a man slathers/wipes cum on a woman's face like an Amish beard, and she proceeds to roundhouse-kick his testicles.

Leroy: "Aw, man I sure am sore today from that sex move last night."

Eli: "What for sex move?"

Leroy: "Martha Yoder have me an Amish Roundhouse."

Eli: "Sounds terrible painful."

Leroy : "Yeah, but coming from her it's worth it."