Sheathing the flaming sword 

A risky sex act. A man puts on a condom and covers it in lighter fluid. He then lights it and puts his penis into a vagina.

I’m going to be sheathing the flaming sword with my girl tonight.

Sheathing the flaming sword by tankajahari December 1, 2022

stething 

Using a stethoscope on oneself or another. Can or cannot be a sexual act, depending on the individual. Alternating periods of exercise and rest are used to create variations in heartbeat, and noticeable defects such as arrhythmia and heart murmurs are exhibited.

I found out my girlfriend was secretly into stething. Now I don't know if she loves me for me or my M.D.

stething by Herr_Doktor_Hier August 19, 2011

sheathing 

A sexual act that is performed by placing the penis inside of the vagina and not performing any further action. It is customary to set up a buffet table next to the bed so that neither party becomes hungry during the often hours-long ordeal. One is not allowed to call or text while sheathing, as sheathing is the ultimate sign of commitment towards a sexual partner. It is perfectly fine to sleep while sheathing. The sheathing ends when: the penis becomes pruned; either party has to urinate, because the result of urination while sheathing would be like putting a thumb over a hose; death of either party; the end of the relationship between the parties. It is not permissible to orgasm while sheathing.

Mark's heart was filled with joy when his girlfriend asked if he would consider sheathing with her.

sheathing by Umbrelladump January 14, 2010

Seething Mald Syndrome

A chronic sickness where the patient reaches terminal levels of mald. This can happen by thinking dark fantasy is Kanye Wests best song or blocking your friends on every platform. Life expectancy is usually 1-2 weeks after diagnosis.

Lotte Blocked us on every platform, I think he might have “Seething Mald Syndrome”.

Seething Mald Syndrome by rexz April 6, 2021

Shethin 

Pronounced ˈʃɪθ-ɪn

1. A sex god from south east Asia who accepts offerings of broken hymen and hard alcohol and in return grants the believer enhanced sexual abilities.

1. Aisha: Let's pray to Shethin. He may increase our libido.

Tushar: Yeah Hopefully. Let's offer this bottle of Jameson.

2. R: That dude is like a Shethin. I've heard he's amazzing in bed and loves alcohol.

Shethin by ThePaw December 4, 2012

Sheathing 

The act of giving a handjob to an uncircumcised penis.

‘Mum caught me sheathing last night.’

Sheathing by Yourdaddy01 October 30, 2018

sheshing 

Art of performing oral sex from a man to a next man

e.g. OMG, he looks as though he got a good sheshing

sheshing by jus4q December 5, 2013