an off-the-cuff remark is one that is not planned.

He made several off-the-cuff remarks which he later denied. (always before noun)

• go ahead with something
• go all out
• go all round the houses
• go all the way
• go along
• go along for the ride
• go a long way
• go a long way toward
• go a long way toward something
• go along with
• go along with someone
• go along with something
• go amiss
• go ape
• go around
• go around and around
• go around in circles
• go astray
• go at it hammer and tongs
• go back a long way
• go back to the drawing board
• go ballistic
• go bananas
• go beet red
• go beetroot