A group of devoted scientists whose mission is to collect data, raise awareness and save the rainbows, which studies show are in decline.

when you're hungover as shit after a spending a night drunk as a skunk

The Rainbow Chasers are a fashionable (although still relatively small)
movement comprising of generally homosexual males/females who
regularly attend events dubbed
as a 'Kavsrave'.

Usually extremely effeminate, a common trend
is to wear clothes specified for the opposite gender.

The 'Unofficial' Honorary Head Rainbow Chaser
(as voted by an online poll in 2010) is Eastenders
star Adam Woodyatt A.K.A Ian Beal, for his
unselfish services to the gay community.

He was named for his ongoing support of the
Rainbow Chasers and there endeavors towards
living a free and alternative life!

Just a bad name to call a homosexual.

A person who constantly wants or desires friends, significant others, objects of desire, etc. that he or she does not have. When a rainbow chaser finally obtains the friend, significant other, object of desire, etc. that he/she so longed for; the rainbow chaser does not appreciate whatever the subject he/she was seeking and moves on to other desires that are not obtained. Rainbow chasers are never truly happy as they never appreciate anybody or anything. Because they are so selfish and lack commitment, rainbow chasers can be narcissists.

N. Someone who regulary partakes in the consumption of ecstasy tablets

A straight person who has both gay and lesbian friends.