He's no a man to ride the water wi'.

"A phrase applied to one who, it is believed, cannot be depended on."—Jamieson.

He's no a stirk o' the right stock.

"I was a friendless lad, and ye took me by the hand,—and could I sit still and see scathe befa' my benefactor, I wouldna be a stirk o' the right stock, that's bred on the land o' Scotland."—Sir Andrew Wylie.

He's no gude to creel eggs wi'.

"Not safe or easy to deal with."—Jamieson.

He's no nice but needfu'.

He's no sae daft as he lets on.

He's no steel to the bane.

He's no the best wright that casts maist spails.