to be ready and excited to begin doing something.

The lawyers were raring to go Monday afternoon when the judge started the hearing.

Usage notes: sometimes spelled rarin' to go to show how it is said:

Sometimes she'd wake up at five in the morning and was rarin' to go.

• rub off
• rub off on
• rub off on someone
• rub of the green
• rub out
• rub salt in the wound
• rub salt into someone's wounds
• rub salt into the wound
• rub salt into wounds
• rub shoulders with
• rub shoulders with someone
• rub someone out
• rub someone's nose in it
• rub someone the wrong way
• rub someone up the wrong way
• rub the wrong way
• rub up the wrong way
• rude awakening
• ruffle feathers
• ruffle someone's feathers
• rule of thumb
• rule out
• rule out something
• rule someone with a rod of iron
• rule the roost