yar

adjective

1. (Britain dialectal) Sour; brackish.

2. (nautical, of a vessel, especially sailboat) Quick and agile; easy to hand, reef and steer.

- 1940 My, she was yar...It means, uh...easy to handle, quick to the helm, fast, right. Everything a boat should be, until she develops dry rot. - The Philadelphia Story written by Philip Barry

verb

1. (intransitive) To snarl; gnar.

2. (intransitive, chiefly Scotland) To growl, especially like a dog; quarrel; be captious or troublesome.