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Siblings who are constantly mistaken for twins.
I went out with my twinster Sunday night and everyone did a double take.
by Conan O'Barbarian July 29, 2010
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Apr 30 Word of the Day
A buzz word being used to refer to creators and influencers forming or encouraging unhealthy relationships with their fans. Usually used in the context of young audiences feeling they have a relationship with the influencer due to the huge amount of the influencer’s content they consume. The influencer in question, however, is unaware of the fan’s existence other than the general knowledge of having fans. Common examples include Dream and his stans. These relationships are exacerbated by the influencers confirming they have more than a creator-to-viewer relationship.

The word is circulating due to various YouTube essays about the phenomenon using the word, and therefore people who enjoy complaining about influencers repeating what they heard in the video in any comments section they can find.
I can’t believe that creator encourages parasocial relationships with his fans...

Man what a parasocial relationship :/
by SodaScarf April 12, 2021
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2
Identical or non identical birth twins that have severed their his or her family relationship for one reason or another.
Ronnie now refers to his estranged twin sister Connie as his Twinster.
by Twinster April 09, 2008
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3
Identical birth twins or non-identical that have severed their family relationship for whatever reason or reasons.
Because Ronnie and Connie twins had a very serious falling out, he now refers to her as his twinster.
by Twinster April 09, 2008
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4
A twin brother or sister who become pissed off at one another.
Connie unjustly accused her twin brother brother Ronnie of some nonsense that caused him now to refer to her as his twinster.
by Twinster April 09, 2008
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