Launch forth (on something)

To start out on something.Our boss launched forth on a long criticism of how we are doing our jobs.

Launch a product

To introduce a new product to consumers.The company will launch their new product next month.

Laugh up one’s sleeve

To laugh quietly to oneself.I was laughing up my sleeve when I learned that my friend would have to clean the bathroom at work.

Laugh (something) out of court

To dismiss a legal case as being ridiculous.They laughed the case out of court when the woman tried to sue the dog's owner after the dog ate her... Read more →

Laugh out of the other side of one’s mouth

To change from being happy to being sad.My friend was laughing out of the other side of his mouth when he received a speeding ticket for driving... Read more →

Laugh off

To not take something seriously. The man laughed off the attempt by his boss to make him come to work early.

Knock (someone) over with a feather

To surprise someone by something extraordinary.It could have knocked me over with a feather when I saw my friend on TV.

Knock (someone or something) out knock out (someone or something)

To make someone unconscious, to make something unworkable or unusable.The storm last night knocked out power in most of the town.

Knock (someone) off his or her feet

To surprise or shock someone so much that he or she does not know what to do.When they announced that I had won the prize it knocked me off my... Read more →

Knock (someone) off knock off (someone)

To murder someone.A robber knocked off the owner of the shop last week.