“Cornelia would not be altogether surprised if she saw the grazing cow start tap dancing, lap dancing, or whatever quantum gravity might cause cows to do.”

“I could dance with you till the cows come home. Better still, I'll dance with the cows and you come home."
Groucho Marx was never one to pass up an opportunity for a play on words and this occurs in his dialogue of the 1933 film Duck Soup:”

“Come, friendly bombs, and fall on Slough!
It isn't fit for humans now,
There isn't grass to graze a cow.
Swarm over, Death!”

“If you hear a song you like, start dancing. That's what I do, I'll just start dancing, and that's it. That's all there is to it.”

“My men, like satyrs grazing on the lawns,
Shall with their goat feet dance the antic hay.”

“And she is going to dance, dance hungry, dance full, dance each cold astonishing moment, now when she is young and again when she is old.”

“Talent? That's not talent. Talent is Liza Minnelli tap dancing and singing at the same time. What I just saw was devastation. Dying man on the cross. Salvation in B minor.”

“I had a rudimentary knowledge of dancing and had learned a bit of tap at dancing school, but it was mostly a case of picking it up as one went along.”

“The coach could do a goat-hoof tap dance around Nico’s head and the son of Hades wouldn’t even budge.”

“I'm the guy in the eighth grade who did not go across the floor and ask the girl to dance for two reasons. One is, she might say no and I'd be embarrassed; two, she might say yes and I'd have to dance…”