lip off

To give lip; contradict, interrupt, or argue with someone.

That teen lips off at her Mom every chance she gets.

lip off by Downstrike September 13, 2004

Dust Your Lip Off 

A typically necessary rearrangement of ones attitude, actions, clothing style or general look, but most commonly a polite way for a good friend to casually mention that you are fucking up in an epic way and therefore require immediate correction before unintentionally embarassing yourself or your trusty friend. This can be further compounded when the possibility exists of you venturing into public or the presence of members of the opposite sex that you wish to someday sleep with, with a 'Dusty Lip'.

The origin of the term 'Dust Your Lip Off' is recognized by most historians as being traced back to ancient Eqypt when it was considered common to have a 'Dusty Lip' if you had not washed your face recently due to the frequency and severity of dust storms (sometimes referred to as 'Sand Storms' from the old Armic language, DaRude). Modern use of the term has evolved throughout the years, but has kept its original spirit of pointing out a flagrant social 'fauxpaux' that you are currently commiting by one of your friends with the desire to help, warn, or just sometimes humiliate you.

Examples Include: (Your friend notices you spending a considerable amount of time whining and complaining about your boy/girlfriend when its clearly obvious that he/she is a complete douch, prompting your friend to say: "Hey buddy...umm, you better stop talking bout that ole' worn out catchers mit you been datin or I'm gonna have to dust your lip off for ya...hear me?"

(You notice that your buddy is considering booty calling a member of the opposite sex that has proven him/herself as completely scandalous and trifling in countless ways, prompting you to say: "Dayum buddybuddybuddy...I know you aint had a girlfriend (or any nookie) in a while but I dunno bout you talkin to that outdated milk turd like you been doin all these years buddy...I might have to dust yer lip off fur ya..."

Dust Your Lip Off by Dirt Lip Jr. April 18, 2010

Hit it off the lip

The giving of oral sex.

Guy: Did you have sex with her?
Friend: No, she only hit it off the lip.

Hit it off the lip by Criss Rooster barn June 20, 2011

lipoff 

someone who talks out their ass

That Lipoff won't shut up about the news.

lipoff by Jewy Louie Bullshit October 16, 2008