Sneakout 

Biking from Elliot’s to Eli’s or Eli’s to Elliot’s at night. Gotta be back by 4a.m!

Dude u wanna sneakout tonight
Hell yeah!

Sneakout by Big D’s Apartment May 8, 2019

Shady Irish Sneakout 

Shady Irish Sneakout (verb) is the act of leaving a social gathering without telling anyone goodbye. There can be various reasons for such behavior. Sometimes, (1)the person leaving without providing a salutation simply wanted to leave without having to say "good bye" to all of his/her friends. In other cases, (2)the person committing the Shady Irish Sneakout may have wanted to avoid saying "bye" because of the worry the others would try to convince him/her to stay. The Shady Irish Sneakout is also common when (3)someone has had too much to drink and have simply determined that they need to leave immediately.

ORIGINATION: 2001 - After a concert at La Zona Rosa in Austin, TX, a group of friends were at the adjacent Backstage Bar when they noticed that Bob Madden had suddenly left unannounced. Upon noticing this, Kevin Brelsford said “He did the Shady Irish Sneakout.” Bob is of course a huge Notre Dame fan and alum and has the Notre Dame Leprechaun tattooed on his arm, thus the “Irish” reference. The likely reason for the Shady Irish Sneakout was a combination of reasons #2 and #3 above.

You are with a group of friends at a party, bar, etc. and all of a sudden notice one of your friends has unexpectedly left. "Where did Bob go?" "He must have done the Shady Irish Sneakout".

Shady Irish Sneakout by swankaction March 5, 2010

Sneak out

When adolescents who are grounded or banned from a party bounce. Usually a highly planned event. People will also sneak out for fun if they're grounded or not. Many sneak out to meet friends and party, but make sure they don't drink/do drugs or they wont be able to get back in. Even more people sneak out to meet boyfriends/girlfriends and make out or romp. If your rents find out you screwed.

1.Me and Lisa went out to a big party. Oh yeah, we had to sneak out.

2. Me and Jeff sneaked out and fucked until sunrise, then I climbed back into my window.

Sneak out by yourfaceonsomanylevels July 16, 2009

sneakbutt 

during casual sex, discreetly remove penis from the vagina and place it in the anus without the female partner stopping to realize and/or care you have performed this sexual act.

James performed a sneakbutt and he was a legend

sneakbutt by Ted from Accunting May 1, 2011

sneakotine

one who sneaks their nicotine

i told my wife not to smoke but i caught that bitch being a sneakotine

sneakotine by kevreb October 10, 2006

Sneak out night

This is the night where u have to sneak out to a party or just with friends etc

Tina: “hey wanna sneak out tonight”

Jen: “oh yeah it’s national sneak out night!”

Sneak out night by idkkkkhehe December 14, 2019