onophobia 

abnormal fear or dread of asses.

He has onophobia.

onophobia by uttam maharjan August 10, 2010

oikophobia 

Xenophobia is fear of the alien; oikophobia is fear of the familiar: "the disposition, in any conflict, to side with 'them' against 'us', and the felt need to denigrate the customs, culture and institutions that are identifiably 'ours.' " British philosopher Roger Scruton

Left-leaning Americans often are driven by conscious and subconscious oikophobia.

oikophobia by Ivanchuk August 28, 2010

Left-on-open-ophobia 

The irrational fear of being left on open on snapchat.

I am scared that they will leave me on open because I have left-on-open-ophobia.

Left-on-open-ophobia by mr_candyman July 3, 2018

unophobia 

The fear of being single. Unophobia describes people of any age or period of life who need to have somebody they call their boyfriend, girlfriend or partner. This is not the same as a fear of not getting married (anuptaphobia)

Alex is suffering from unophobia and needs to get into another relationship as soon as the last one ends.

unophobia by Dr May September 6, 2014

oofophobia 

n. Fear of hearing the oof word/sound.

Example of oofophobia:

{SYSTEM}: User has joined the game.
User: Yayyy a new server

User2: oUtTa mY WaY pUnK
*Pushes user*
OOF

{SYSTEM} User has left the game.

oofophobia by ThePhobiaGuy May 13, 2021

Octophobia

fear of the number 8, this IS a legit and very real phobia.

"I suffer from Octophobia."

"5, 6, 7, ...AAAAHHHHHHHH!"

Octophobia by M-HO March 10, 2005

omniphobia 

The fear of everything.

Timmy was diagnosed with a severe case of omniphobia.

omniphobia by Tyler November 28, 2004