“Break a leg”

“Like a fish out of water”

Uncomfortable in a new or unfamiliar situation.

“In full swing”

Happening with full activity and energy.

“Make it or break it”

To cause either success or failure.

“Meet someone halfway”

To compromise with someone.

“Keep someone at arm’s length”

To avoid becoming too close to someone.

“Break new ground”

To do something innovative or original.

“Not have a leg to stand on”

To have no support for an argument.

“In a pickle”

In a difficult or troublesome situation.