When a person is talking reckless about someone

A pick me is a woman that is willing to do anything for male approval. She will embarrass or throw other women under the bus to achieve this goal. The unfortunate thing about a pick me is usually the men they are trying to seek approval from are of poor quality and treat women badly, leaving little real benefit for the pick me.

Talkin' Sh*t. Tryin' to get loud on somebody.

a person who was born with a spoon in their mouth, usually of the silver variety. They will have recieved a private education and at least one person in the family will be into ponies. They will wear silly clothes and their lack of integration leaves them with a very unique sense of fashion. They look down at the common folk and daddy drives a land rover vogue. Will generally own a "new Mini" and drive around in their car bought for them whilst wearing a body warmer of sorts. Floppy hair and lots of cheek kissing. Girls will be called : Hatty, Poppy, Ellie, Tabatha, Tamar etc. They will never carry a bag over the shoulder and would rather carry more books than they can manage under one arm. There are few problems with the types until the university stage where they are released into society. The naive pomp of these fools can often lead to violence. Degree courses will include law, politics, English or History.

noisily enthusiastic, especially in a partisan collegiate context (from a shortening of hurrah used by cheerleaders)

Is the term usually given to the Pep Squad at school; A Cheer Leader or anyone associated in 'The Spirit' of a function, group, or activity. Other names used for Pep Squad; Cheer, Pom Pom's, Yell, Yell Leaders, Spirit Squad, and Mascots

Rah Rah's can also be the friends who hang out with Cheer Leaders. It denotes a specific social group or click

adj.
Masculine, macho