obsessicane 

(n) a state of mind that inspires behavior designed to drive everyone else around you crazy by obsessing about a weather pattern that may or may not affect your life in the next four weeks.

Steer clear of David today. He discovered a tropical depression forming off the coast of Gambia and is in the eye of an obsessicane.

obsessicane by Vicar of Brevard October 24, 2008

Obsessinate 

A combination of the words Obsessed and Assasinate.
Best used to describe somebody who is so in love that they cannot stand the idea of anybody else getting close to the object of their desire. They can become so consumed with jealousy that they often fantasize about killing said persons.

'Bob loves Kelly so much that he dreams about killing any other guy who tries to gets near her.'

Bob is showing obsessinate behaviour.
Bob is an obsessinator.
Bob thinks about commiting an obsessination.

Obsessinate by Sir Eef April 30, 2009

Hamilton Obsessiveness Disorder

(aka H.O.D.) A disorder that is related to the famous broadway musical, "Hamilton". People suffering through this disorder tend to both consciously and unconsciously sing certain songs or excerpts from songs from this musical. Some symptoms include continuing sentences or answering questions in the same way as some Hamilton songs go, singing Hamilton non-stop, and nonstop talking about this broadway show. If you experience these symptoms, it is recommended that you see a doctor ASAP.

I feel so sorry for her, she has the Hamilton Obsessiveness Disorder.

Hamilton Obsessiveness Disorder by Juanbaej July 17, 2016

Obsessioner 

An obsessioner is a person who obsesses over things, particularly Harry Potter related things.

Pippi is a Harry Potter obsessioner

Obsessioner by Person say hello August 16, 2009

momentary obsessiveness 

When a persons thoughts are completely preoccupied with a person, place, thing or event but they forget about whatever was consuming their thoughts in an hour, day, week or month.

Anthony is experiencing momentary obsessiveness about the royal wedding just to annoy his listeners.

momentary obsessiveness by WEHM Insider June 5, 2018

obsessical 

(ob-sess-i-cul) To be obsessed with male, or male-ish genitalia; "boy-crazy"; or slightly stalkerish toward men.

"Ryan is ssooooooooo hott."
"You are totally obsessical over him!"

obsessical by Coco-chan January 18, 2008