Momentary Mom 

A mother who leaves her child.

Momentary Mom keeps calling me but I don't want to talk to her if she is not planning to come back for good.

Momentary Mom by insaanx May 29, 2020

A Momentary Lapse of Penis 

Thinking with your dick instead of your brain.

A slightly different take on Pink Floyd's 1987 album "A Momentary Lapse of Reason", used to describe the process in which the male anatomy overrides all rational decision making. Similarities can be drawn to "the heart wants what the heart wants", but "what the penis wants" is more powerful, visceral, and immediate.

Jack: Dude, you must have been beer goggling last night. That girl was such a butterface!
Jim: Yeah, I had a momentary lapse of penis.

John: Why the hell did I out my crush like that and admit to having all these feelings...I don't even like her that much!
Jake: Blame it on a momentary lapse of penis!

A Momentary Lapse of Penis by nearly civilized February 18, 2010

Momentary Emotion 

Emotion that turn on and off in a matter of moments.

Also works with hate, love, and sad.

This must be Momentary Emotion if I hate now but in a few seconds I like you but then change back to hate you again.

I love this car, I hate this car, but I really love this car, but I really hate this car.

Momentary Emotion by PYROxSYCO January 2, 2010

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

Momentary Tourettes 

The perfect excuse for random swearing

Teacher: Any questions class?
Student: FUCK YOU!!!!
Teacher: Watch your mouth
Student: Sorry, I had some momentary tourettes

Momentary Tourettes by Yaikon May 15, 2010

momentary fear delete 

When, upon seeing your status on facebook or twitter, you cringe in shame, embarrassment, or both, then delete it... but reconsider and post it back a moment later, figuring to hell with it.

"sorry, i had a momentary fear delete when I saw that it said MYHANDLE's genitals."

momentary fear delete by HonkyTonkWoman13 November 8, 2013

momentary dementia 

the mind 'blanking' on some known information very briefly, such as spelling of a word, grammatical usage; etc!!
upon looking back, one is left pondering, 'how/why did i do that!!??
-terribly self-embarrassing and a problem not age-specific!!

had some momentary dementia when i spelled your as you're!!, when 'your' was required

momentary dementia made me ignore the concrete fact/s in my head

momentary dementia by michael foolsley February 4, 2010