A service most telephone company's offer that displays the calling party's name and number on a display device, which is connected to your phone line.
I wish to God Caller ID was never invented.
ayon kay Anonymous ika-28 ng Hulyo, 2003
1 more definition
While having sex with a girl, call her cell phone and when she goes to get it start to masturbate behind her. When she gets to her phone, she'll see its you, look behind her and then you blast her in the face.
"Jenny couldn't believe it when she saw the Caller ID, the look on her face was priceless"
ayon kay The Bees ika-29 ng Enero, 2005