It is an old saying meaning that the person is sharp, or very intelligent.
Tack
A trimmers hammer was used to upholster car interiors in the early 1900's. The hammer had two long tapered heads, the smaller head was magnetized to hold the tack, the larger head was used to drive the tack home
Tack
biskits
It's actually "tak" and it means "yes" ;-).
to smoke tack is to smoke cannabis resin i.e marijuana plant substitute
'Thanks'. Tack is pronounced tahk.
tack så mycket means thank you very much, or thanks a lot.
Low coolant warning
Nope - it's a short sound - like back, sack and rack. Not a long sound like rake, take or bake
it come from the sharpest tack of the world
Martingale