Top definition
Twincism is a form of discrimination directed at twins. It tends to resort to stereotypes regarding the similarity of twins, or failing to acknowledge that twins are, in fact, individuals themselves.
"Man, you and your twin are so alike."
"Don't be such a twincist! Twincism is bad."
by partyboy17 September 07, 2009
Get the mug
Get a twincism mug for your girlfriend Riley.