What is Beevis?
1.
To freak out, spasm, shake a little, experience paranoia, often as the result of drugs.
He quit smoking weed because he used to always beevis in his chair after a bong rip.
See
2.
It is butthead's great t.v sidekick beevis and butthead
yo beevis and butthead are the comady ledgends dude