self-detriment 

blaming one's self, hurting one's self, etc
almost everything negative that you do to yourself belongs in this category

Her words were dripping with self-detriment.

self-detriment by WeaBilly November 12, 2015

self-kill 

literal meaning - to kill oneself, commit suicide
urban meaning - like "shoot yourself in the foot" to do or say something that causes problems for you

My brother has self-killed twice by turning down buyers for his house.

self-kill by Checkmatezero July 17, 2016

self-murder 

The act of involuntarily killing one's self with exercise.

Your mind says "ENDORPHINES YASSS!" but your body just says "NOPE"

Rozanne is off to commit self-murder running in the forest!

self-murder by TwoTarts March 8, 2017

Self actualization 

The kind of madness and arrogance that pushes someone to strive after perfection, being the best they can be. To be self actualized, one must emerge from their basal immaturity and embrace a new order of thought and action. The prudent recognize it to be a vane pursuit, but still indulge it for the dividends it pays in advance.

All the intellectuals old including Sigmund Freud , may be considered to have achieved self actualization for the achievements they made but at what cost one may ask. Sadness and rejection. Condemned to a life of solitude.

Self actualization by milure June 9, 2018

self righteous bitch 

Natasha Tynes

I see you drinking that coffee when you aint even on break, don't make me go all Natasha Tynes on yo ass like some kinda self righteous bitch !!

self righteous bitch by Carly McDougalfuddy May 13, 2019

Self succ 

An alpha male chad who is able to contort his body into a position to be able to suck himself off

Tod: Yo Brad I totally got some good self succ in last night
Brad: Bro that’s kinda gay

Self succ by The self succ guy January 8, 2020

self hanging wedgie 

A self hanging wedgie is basically a self wedgie but hanging your undies on something higher then you.

I am doing a self hanging wedgie right now.

self hanging wedgie by Lilly Green December 7, 2020