Down Feather

Down Feather is a condition like Down Syndrome. But only birds can get it.

Look at yoshi sitting there with his beak open, he totally has down feather.

Down-Feathered

When your loved one drains your balls of all sperm and now your balls are light as a down-feather blanket

My girlfriend Down-Feathered me and now my balls feel light as a feather!