plaintive

Sad, longing or mournful.

If the song was sad Woody Guthrie sang it in such a plaintive voice it could make you cry.

backfeed

Intentionally barf up your food after eating.
Bulimia.

Tammy ran to the bathroom as soon as she thought no one was looking and started to backfeed.

trafficking

Selling something illegal.

I heard he got the book for trafficking in drugs and diamonds.

acclimated

Got used to a new environment.

I am turning my heater up to 74 degrees for the next week so that I will be acclimated to spend a week with my skinny always cold sister Ramona.