ny-mare 

bad dreams you get after taking ny-quil. it's not just a coincidence.

"I don't know what's worse: the taste of ny-quil or the ny-mares you get because of it.."

ny-mare by chelseamonster August 29, 2007

Nymares 

The strange and horrifying nightmares experienced while sleeping under the influence of Nyquil.

I've got a bad cold, but if I've got to be up in 6 hours. If I take Nyquil now, the Nymares will shatter my fragile mind and turn me into a super villain.

Nymares by BrandonBob December 1, 2009