Lunderstorm 

A rainstorm in which sudden and simultaneous lightning and thunder (lunder/thightning) is a frequent occurence.

“This is like something from a movie, the whole street just flashed white, it’s a total Lunderstorm!”

Lunderstorm by Jimi E August 13, 2020

lunarstorm 

A totalitarian society of "fjortisar" ruled by Bjarne and his followers, "lunarcrew".

Have adapted their own language which some say originates from Swedish.

aZzÅ lUnarztOm iz tYp a Noobizh coMUnity
*Zkrataj*

lunarstorm by Ectoplasma February 27, 2004

sunderstorm 

A thunderstorm where the sun stays out the whole time.

Tim: DUDE! It was sunny the whole time it was storming today. There was lightning and everything!

Chase: We live in Virginia, man; we always have sunderstorms.

sunderstorm by Rhetorik April 20, 2009

Funderstorm 

When you are having so much fun it is out of control.

A brooding thunderstorm of fun.

The party was a funderstorm.
We had a few drinks and before we knew it, a funderstorm was brewing.

Funderstorm by Julian Conaghan October 22, 2010

Lunarstorm 

A Swedish Community (Lunarstorm.se)
that was big in the late 90's - early 2000 and used by basically all kids.
These days it's widely viewed as a community for losers or kids, although the community is still rather big and recently got a completely new look.

Lunarstorm looks more appropiate for all kinds of ages now
but still has a bad reputation among a lot of people who view the site as lame or whatever. The site probably would have even more members if they changed the name of the community.

- Jag är på Lunarstorm :)

- Eh.... okej... kul.

Lunarstorm by Mirxi October 20, 2010

slunderstorm

A winter storm that includes sleet and or freezing rain, thunder and lightning.

Yesterday's slunderstorm left an inch of ice on the ground.

slunderstorm by Allan K. Mills March 11, 2008

lunarstorm 

A swedish internet community wich is extremely popular among fourteen-year old schoolkids.

"Dude, you don't have a Lunarstorm? You're like, totally not cool."

lunarstorm by Fredde September 7, 2004