WEIRD: We’ve mentioned a time or two that we’re fans of the English language.

We decided to bring you some weird and wonderful words from the website for Oxford Dictionaries.

Did you know “aa” is a word? It means a kind of volcanic lava that forms jagged masses with a light frothy texture. And it is the first entry in the Oxford English Dictionary.

Here’s a fun one: absquatulate, which means to leave somewhere abruptly. (If this were a spelling bee, we might have to absquatulate rather than spell this word without help.)

Be careful not to fall into the bergschrund, which, of course, is a type of crevasse.

Thanks to Florida, and the 2000 election, most people know the definition of “chad” — a piece of waste paper produced by punching a hole.

But what about catoptromancy? Oddly enough, there’s nothing feline in the definition. It’s foretelling the future by means of a mirror.

A chanticleer might be a bit intimidated by a feline, as it is a rooster in a fairy tale.

A donkey engine would not fit in with the animal kingdom, as it refers to a small auxiliary engine on a ship. And the donkeyman is the man working in a ship’s engine room.

An ecdysiast might be a popular person in some circles, as that is a striptease performer.

And what of the gaberlunzie playing a gaita while wearing galligaskins? The meaning is this: a beggar playing a kind of bagpipe while wearing a type of loose breeches worn in the 16th and 17th centuries.

Everyone has a hallux, but they might not be aware of this other name for the big toe.

Meanwhile, the illywhacker may keek at the lactarium. That is to say, the trickster may peep at the dairy.

Finally, most of us are aware that a couch potato spends a lot of time in front of the television. However, the term for someone who spends a significant amount of time — either free time or their work hours — on a computer is the less well-known … mouse potato.