Little Bobby nodded to her over his shoulder, without moving his hat, and continued his conversation with the heir of Heehaw.
"Vanity Fair" by William Makepeace Thackeray
You ought to be locked up in some nice quiet stable, where your heehawing wouldn't disturb people.
"The Eagle's Shadow" by James Branch Cabell
Names that seem to me bad are Fitzoof, Lord Heehaw's son, Mrs Mantrap, and Lord Claude Lollypop.
"Springtime and Other Essays" by Francis Darwin