Slang for cellular telephone. Unlike old late 80's early 90's version a cellephone must fit in a pocket and have a built in camera.
Billy: Hey, Jane, can I borrow your cellephone.
Jane: Ya, just let me pull it out of my pocket.
Tellular Cellephone means nutsack.
“Dude have you seen that video of Jackson’s Tellular Cellephone?”