BEWARE---little johnny---'definately'

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One day the teacher wanted the class to use the word definately in a sentence. Suzy raised her hand so she called on her.
She said, "The sky is definately blue!"
"I'm sorry Suzy thats wrong the sky sometimes turns different colors red ,gray etc.. any body else?"
Timmy raised his hand and said, "The grass is definately green."
"I'm sorry Timmy that's not true either, sometimes the grass dies and it may turn brown, anybody else?"
Little Johnny raises his hand and says, "Teacher do farts have lumps?"
The teacher says, "no why?"
Johnny says, "Then I definately *bleep* my pants!"