It is how sexually repressed people pronounce breasts. If anybody remembers the skit on mad tv, or was it saturday nigh tlive with the black guy in it portraying a ex con or something, everytime the character had to say breasts, he began stuttering and pronouncing it breast-ess-es.
1)noun;someone who is good at something
2)noun;someone who is being mean
3)beastyness;adjective;something cool
4)beasty;verb;to act crazy, wild, mean, nice, funny
1)He is a beast at tennis.
2)She was such a beast today.
3)We're partying tonight! Beastyness!
4)You are so beasty.