Landline 

A telephone or other telecommunication device that is stationary and connects to the network via traditional wiring. Wiring can include old telephone lines and fiber optic wiring. Device usually plugs into a wall jack.

"Dude, my cell's not working. Can I borrow your landline?"

Landline by mahka42 December 28, 2005

Landline 

Least attractive person in a couple you hook up with in order to get to the most attractive one. Named after the landline that no one really wants in a cable company's "triple play" (internet + TV + landline). Can also be used as a verb.

It was obvious that the guy was clearly more into my boyfriend than into me, but I still went along with it. I was clearly landlined.
This chick was so hot but she wouldn't do anything without her husband, so I went ahead and got the landline.

Landline by lelaroquais August 15, 2017

Landline 

(slang) Home telephone number in a rural area.

Our farm's landline is (334) xxx-xxxx.

Landline by Brian November 26, 2003

Landline 

A old ass phone. Something you dont want.ESPECIALLY IF YOU HAVE DIAL UP.

Who the fuck still uses a landline?

Landline by DanTheMan0001 December 8, 2022

Landline 

The opposite of a grenade launcher, but still is ugly.

The awkwardly skinny ugly chick in a group of hot girls.

Simailar to a grenade, but skinnier.

As mentioned on Jersey Shore by Pauly D.

Pauly D - Man, Ronnie is over here hooking up with grenades and landlines.

Guy - I had to take the landline last night, but I got a hot chick later, so it's cool.

Landline by kostovetsky August 3, 2010

Landline 

(n.)An individual's personal phone number. Excludes non personal telephone numbers, and social media messaging.

I want your landline so I can personally message you.

Landline by ShottyBum204 April 19, 2018

Landline Friend 

Someone you have been friends with since back when people communicated via the green rotary phone in your grandma’s house.

“I’ve known him since we were kids. He is my landline friend.”

Landline Friend by FlipmodeATL December 19, 2021