Part of speech: noun
Origin: Scottish, early 18th century
(Humorous) An animal, insect, or germ.
(Informal) A vehicle or device of a particular kind.
Examples of Beastie in a sentence
"Watch out for beasties trying to invade your picnic."
"I hate to carry my big camera, so I bring this little beastie in my purse."
You’re not going to hear this word from a veterinarian, or see it in a biology textbook, but you can use "beastie" to refer to any kind of creature, mythical or real. The word has Scottish roots, and you might hear it used as “wee beastie,” with a jovial or even exasperated tone. When it's not referring to critters, it's used to refer to objects in the same sense that Americans might call something a "thingie."
Did you Know?
From Nessie to unicorns, Scotland is overrun with beasties. The unicorn is an officially sanctioned national animal beastie and has been used as a symbol on the Scottish royal coat of arms since the 12th century. As for Nessie, countless witnesses claim to have seen the long, thin, reptilian creature rising from Loch Ness, but for now, she remains folklore.