Dextronormative 

Used to describe one who lives by the assumption that right-handedness is the standard, preferred, and only mode of handedness and that things associated with left-handedness are generally evil.

Steven: I found out Nils is left-handed today...

Michael: Oh my God. I can't believe this shit; I had no idea.

Steven: Yeah, you can never really be prepared for that sort of thing. I don't think I can be friends with him anymore.

Michael: Yeah, me neither. He's dead to me.

Sophie: What the fuck you guys?! You're being so dextronormative!!!

Dextronormative by Canadajin November 8, 2009

dexteronormativity 

The subtle and harmful assumption of right-handedness in a person. A dexteronormative person might exclaim in surprise at the realisation that somebody is left-handed and draw attention to it in a way that would be ridiculous if it was to a right-handed person. This can lead to the left-handed person feeling "othered", which can be very damaging to their sense of self.

Dexteronormativity has also lead to a severe lack of representation for left handed people in the media, with left-handedness only ever being featured as a personality quirk in a character.

The use of "sinister" to refer to something that is menacingly different is a symptom of todays sinistrophobic culture.

"Oh my God! You're left handed! That is so weird!"
"That's dexteronormativity!"

dexteronormativity by Blakeyboy93 December 13, 2014

Destranormative

Assuming that everyone is right-handed

"I got some new golf clubs. Want my old ones?"
"Dude, destranormative!

Destranormative by Not a Criminal May 5, 2020