My high school freshman English teacher used to give us funny looks or make loud noises every time one of his students uttered the word "like" in any form other than a similie. (Such as "She was so, like, stupid." Or "He was like, all crazy and stuff.")
It got the point across and people eventually stopped by the end of the year.
It's not the same as "I'm sick wit it" or "I got my hair did" but it's an idea to help.
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