Self Inviter 

A person that does one or both of these 2 things:

1) turns up at an event mainly a party without getting invited by the host(s).

2) Asks the host if they can come to an event,even though it's invite only and they weren't invited in the first place. *

* this puts the host in an awkward situation where they have to say 'yes'.

Person 1 : hey isn't that Toby over there. Did you invite him?

Host: yeah it is. I didn't ... Ffs

Self inviter: hey Sarah , heard about your party is it ok if I turn up?

Host: urm.... Sure I guess.

Self Inviter by Society_Sucks_ July 7, 2016

self invite 

A self invite, or SI, occurs when someone decides to invite themselves into an activity to which they were not explicitly invited.

An "epic SI" is a derivative of the SI, where this person continues to invite themselves after being explicitly told "you are NOT invited".

Very frequently, this type of social ineptitude leads to being labeled your dawg in jest.

Mich showed up at my Super Bowl party and ate all the chips. I didn't invite him, so he self invited himself!

self invite by moraleboatanchor March 24, 2013

Self Invite 

Someone who invites themselves to all social events when not initionally invited. They show up without notice and overstay their welcome. Otherwise known as a "Reece"

Damn that Reece invites himself everywhere! Such a Self Invite!

Reece turned up to my house without notice last night. CREEPY!!

Self Invite by sprinkleoffairydust January 25, 2016

Self-Invitee 

The person at the party who heard, either through facebook (eg. events, reading wall-to-wall comments) or 'a friend' that the party was happening and decided that they should invite themselves even when they have no good business being there; ruining the night for everyone.

"err who invited that guy?"
"Oh, i guess he's a self-invitee"
"Wow what a douche"
Pete Sarich.

Self-Invitee by UKnowWho@ur face February 12, 2009