Accidementally 

Describing a particularly ridiculous mishap, esp. one incurred by an accident-prone person.

Person 1: "Jimbo accidementally glued his hand to his face."

Person 2: "Again?!"

Accidementally by Squeegy_Beckenheim November 1, 2012

accidentally on purpose

as if by accident, but really on purpose

They started the fire accidentally on purpose.

accidentally on purpose by Light Joker May 1, 2006

I accidentally 

I accidentally

A phrase to describe when you ruin something beyond repair, or screw up to the point where it is impossible to describe the mistake with a verb.

'I accidentally' the whole green screen!
'I accidentally' my whole ipod!

I accidentally by TronB September 16, 2010

accidentally gay

That moment during masturbation to porn when,during ejaculation, the scene switches to the a shot of the male performer's face or body. For a straight male, this is a highly uncomfortable moment, because he is essentially having a man bring him pleasure, something he neither desired nor expected. See also "disasturbation".

I haven't had sex with a man, but I've been accidentally gay more times than I'd care to admit.

accidentally gay by turbulent April 13, 2015

accidentally in love

One of greatest songs of all time known famous by Counting Crows, guaranteed to put you in in a good mood, no matter what condition your in :).

Dude, Accidentally In Love, that's my shit right there!

accidentally in love by awe7197 October 26, 2013

Accidentally On-Purpose 

A spur-of-the-moment decision to do something that you should not be doing, which you then deny when someone finds out about it by saying it was completely on accident.

Girl 1: Did you steal my favorite shirt? I found it in your room
Girl 2: Oh! Uhh, I must have, um, packed it in my bag by mistake when I was leaving your house! It was on accident!
Girl 2: Yeah, right, accidentally on-purpose!

Accidentally On-Purpose by MsTwixx96 October 17, 2009

Accidentally Stalking 

The act of learning information about a person because of thing posted on a third web-page or face-book wall. This is usually followed by the mentioned information being referenced later, and the person not realizing that what they said was viewable by non-friends. Thus leading to the incorrect assumption that that they were being stalked.

Jill Posts-I need a vacation.- Viewable to Steve's News-feed.
Jane comments. You should totally come with my on mine. I'm going to Costa Rica!-Also viewable by Steve

LATER
In an unrelated post later Steve asks about Costa Rica Trip
Jill-That trip was a secret! How did you know!
Jane- How did you know about my trip?! STALKER!

Steve-WTF? It was on my Feed! It was Accidentally Stalking at worst!

Accidentally Stalking by Yeah. This happened. November 1, 2010