Cluster

A series of headaches that occurs with the medical condition Cluster Headaches.

I have had cluster headaches for 10 years, but this CLUSTER is the worst.

by JJA December 22, 2004

Cluster

To text excessively or to offer pictures with minimal clothing, often ending in no reply or an awkward moment of confusion.

Yesterday I was doing my homework, when he started to cluster me, I have a boyfriend, so I didn't reply.

by Real4lyfe21221 December 16, 2010

clusterization

In Call of Duty during Zombie Mode when you are being chased by a horde of zombies and you run around to get the zombies in a cluster. This way, you can shoot all the zombies at the same time to get tons of points.

Dude, Grady, check out this prime clusterization! Im getting so many points!

by Gradymasta July 26, 2011

Cluster

a group of specimens gathering together (possibly in an orgy-fashion)

by Bastardized Bottomburp May 21, 2003

clustering

The act of throwing Clusters Handcrafted Popcorn up in the air intentionally to be caught in the mouth.

You should record yourself “Clustering” on video.

by The Kernel February 16, 2019

cluster

A raw, mark-ass trick who runs amok.

Dude, ur such a cluster.
I just called U that 5 minutes ago...

by phoneshia April 25, 2006

cluster fuck

Miltary term for a situation caused by too many inept officers, cluster referring to the insignia worn my majors and LT. Colenels, oak leaf clusters.

The planning for this operation was a complete cluster fuck.

by Rick Maize September 10, 2003