Top Definition
Associated with Facebook. When someone uses your facebook profile wall to communicate with one of your friends while completely ignoring you. Usually possibly when you are the common friend.
Dude, Jeff just sent Felecia a message on my wall. and they were making beach party plans on my wall. I just got walljacked! WTF!

zomg, I just got walljacked by Brendt and John, they're talking through my wall. Talk on your own wall bitches!
by AJ Singh May 08, 2008

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The act of two people 'hijacking' a mutual friend's facebook wall by having a conversation there where the the mutual friend doesn't participate.
(Katie and Steph Walljacked Dave's wall:)

Steph: Oh hi Dave!
Katie: Oh hi Steph, it's Katie!
Steph: Hi Katie! Isn't it fun to write on Dave's wall?
Katie: It sure is, did I tell you Dave likes our picture?
Steph: You did, yes -- so funny!
Katie: So I'll see you in a few weeks?
Steph: Yes, great!
by wombatfan September 29, 2009

The Urban Dictionary Mug

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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(verb) To hijack someone's Facebook wall, either by repeated postings or by stealing the focus of their post with a comment that is more interesting than the original entry.
Dana really walljacked Katie with that comment about her crazy dream.
by spdcheetah September 21, 2010

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt
When someone takes a Wall post in a different direction in which you originally intended, therefore "Jacking" your Wall and post.
Dude, I posted a song on my Wall and Josh started talking about his dog and now it has nothing to do with my post, complete Walljack!
by Sultin July 08, 2011

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt