When a female describes how physically attractive a guy, usually a celebrity, is in numerous consecutive tweets.
@Girl: Omg Channing Tatum is so HOT!
@Girl: His body is amazing!
@Girl: Channing Tatum is soo sexy, and look at those eyes!
@Girl: Omg Omg Omg!!!
@Girl2: @Girl Chill out with the twittergasms!
When a twat keeps tweeting about the same thing over and over. Oh, Oh, Oh!
That weather twat is having a twittergasm about the bad weather coming.