crocodile tear

shed a tear

To have a tear released, to cry (from sadness)

tear a cat

To overact; to violently rant and rave on stage.

tear one's hair out

To react with extreme agitation.

tear to shreds

Synonym of tear to pieces.

tear up

To damage.

tear up the dance floor

To engage vigorously in dancing.

tear up the pea patch

To put on a notable performance, especially in sports; to go on a rampage.