1N-SING 电视机The boob tube is the television. 电视机 [mainly US, informal]
...hours spent in front of the boob tube.
在电视机前度过的数小时
in BRIT, use 英国英语用 idiot box
2N-COUNT （女性的）紧身胸衣，文胸 A boob tube is a piece of women's clothing made of stretchy material that covers only her chest. （女性的）紧身胸衣，文胸 [British, informal]