Selectively social 

Someone who is uncomfortable socialising with people they don't know. They only talk to a select few people they feel very close to. They hate crowds of strangers.

Taylor is selectively social, she hates people.

Selectively social by Depressedcat October 5, 2016

selectively permeable membrane 

A hot girl's vagina.
Very selective on who's dick is permitted through the membrane (her pussy lips.)
Will often deny nervous, non-jock types. The membrane judges largely on physical appearance, not on the pretense of a good personality or wit.

Guy 1- So did you sleep with Elena in the end?
Guy 2- No, she had a selectively permeable membrane.
Guy 1- ... So she turned you down?
Guy 2- Yeah.
Guy 1- Well just say that then!
Guy 2- I needed to make an example for a definition for urban dictionary, okay?!
Guy 1- Oh, right... Wait a minute, am I on TV?!

selectively permeable membrane by uwanttruthitellz May 9, 2009

selectively hot 

any person who looks good in some pictures but in others it really repulsive

Katy Perry is selectively hot

selectively hot by flim flam city October 28, 2008

selectively active

a word invented my myself bout a year ago... its the niecst way or saying you're lazy

- im hungry
- go eat
- food's too far away... i need a butler
- lazy butt
- im not lazy..... im selectively active

selectively active by Dean December 4, 2004

Selectively Shomer 

A Jew who is only shomer with Certain people and at Certain times.

Someone who doesn’t touch members of the opposite sex for religious reasons, however when a hottie wants to hook up, they make an exception.

My friend Shifra, told me she was shomer but I saw her touch Dovid the other day so I guess she’s Selectively Shomer.

-or-

Person 1: her Rivka wanna hook up on the next Shabbaton?
Rivka: no I’m shomer

Person 2: hey Rivka wanna hook up on the The next Shabbaton?
Rivka: omfg of course babe

Person 1: What? I thought you were shomer?!?

Rivka: haha no I’mSelectively Shomer!

Selectively Shomer by @sarahbellaweasley December 29, 2019

Selectively lazy

A selectively lazy person is one who has large aspirations in life, but these aspirations are never realized due to minor inconveniences the person is not willing to willing to work passed.

Person 1: "my phone is about to die, but I need to keep working on my aeronautical engineering homework!"
Person 2: "go grap your charger!"
Person 1: "but my charger is down stairs!"
Person 2: "god, you're so selectively lazy."

Selectively lazy by StayFocused September 1, 2017

selectively gay 

when you only suck dick sometimes

Gus is selectively gay, he only takes it up the ass when he wants to

selectively gay by illmakeuhowellbitch February 5, 2018