Laith to drink, laith frae't.
Meaning that although some people are slow or "laith" to begin a thing, still, when they do commence, it is difficult to get them to leave off.
Lang and sma', gude for naething ava.
Jocularly applied to those who are tall and of "genteel" build.
Langest at the fire soonest finds cauld.
Lang fasting gathers wind.
Lang fasting hains nae meat.
Lang leal, lang poor.
Lang lean maks hamald cattle.
That is, poorly kept cattle makes homely, domestic, or common meat.