CalmDownU 

When you get really excited about something, usually referring to Love, and your boyfriend has to remind you to calm down.

J'sGirl - "Baby,I really miss you, I haven't seen you since yesterday."

J - "It's been 12 hours... CalmDownU!

CalmDownU by J'sGirl October 10, 2006

clamdown 

Word used by Jorge Martinez when trying to calm someone down; Slang term for those of Latin-decent, Omar Gaylindo would know since he is Mexican; Word is derived from "calm down."

Omar, clamdown please.

clamdown by battlecat714 March 2, 2007

Calidown 

When California sinks into the ocean.

In the movie "2012" there is an instance of Calidown

Calidown by RealComicalDude December 2, 2016