A very Scottish thing to say is, "It's pure dreich oot there," meaning the weather is miserable, grey, and drizzly. Other quintessential phrases include "Gonnae no' dae that" (don't do that), "Pure dead brilliant" (amazing), and "Lang may yer lum reek" (a toast wishing someone a long, healthy life).
Bonnie – Bonnie means “beautiful” and it's a very useful world out here in the Scottish Highlands. The perfect way to describe our most spectacular surroundings. Dug – Dug simply means “dog” in Scottish dialect.
"Och aye the noo" is a stereotypical Scottish phrase meaning "Oh yes, right now," but Scots rarely say the full phrase together; instead, "och aye" (oh yes) and "the noo" (right now/just now) are used separately, and the combined phrase is mostly used in parody or by non-Scots. It's a classic example of a "Scotticism" used for comedic effect, representing exaggerated Scottishness.
bampot or bamstick An idiot, fool, or sometimes a nutcase. This is often shortened to bam, and any eccentric named Thomas risks being dubbed 'Tam the Bam'.
Nae bad is a Scottish phrase which means "not bad" - often a reply when a person is asked how they are doing. More stories from North East Scotland, Orkney and Shetland.
Dreich. Take from this what you will, but 'dreich' has been voted the “most iconic” Scots word several times. In a sentence: “It's awfy dreich oot there the day.” In English: “It's awfully dreary outside today.”