Form (n.): A state or mood that a person
occasionally enters, typically characterized by
annoying or
irritating behavior.
Easy to say to ones face when they enter their form
"As soon as the board game started, it was clear that (name) was in his form, selfishly
making moves that benefited only him and sabotaged the rest of us."
"When (name) gets into her form, she becomes overly competitive, turning a friendly game of trivia into a battleground."
"(Name) was in his form at the party,
dominating the
conversation and not letting anyone else get a word in."