Ye'll gang a grey gate yet.
"You will take a bad, evil, or improper course, or meet an evil destiny."—Jamieson.
Ye'll gar him claw a sair haffit.
"'Haffit,' the side of the head."—Jamieson.
Metaphorically, you will do something to injure or annoy him.
Ye'll gar me seek the needle where I didna stick it.
"That is, send me a-begging. Spoken to thriftless wives and spending children."—Kelly.
Ye'll gather nae gowd aff windlestraes.
Ye'll get as muckle for ae wish this year as for twa fernyear.
"Fern" signifies the preceding year. The proverb means that wishing begets nothing.