An example of a tube is manicotti pasta.
An example of tube is the container that toothpaste comes in.
She tubes lipstick.
They tubed down the Colorado River.
- Into a state of failure or ruin:.Saw her plans go down the tubes.
- In or into a condition of failure, defeat, etc.
Origin of tube
- French from Old French from Latin tubus
From American Heritage Dictionary of the English Language, 5th Edition
- From Middle French tube, from Latin tubus (“tube, pipe").