Hammer out phrasal verb
A noun or pronoun can be used between "hammer" and "out"
To hit something repeatedly in order to make a dent disappear or stretch it out and make it thinner
I tried to hammer out the dent on the tailgate, but I couldn't.
They need to heat up the metal piece before hammering it out.
To reach a decison or agreement after lengthy discussion
Two warring countries are still trying to hammer a truce out.
Governments have hammered out an international treaty on climate change.
To play something on the piano
He sat in the corner, hammering out a song written by him.
I've been hooked on piano lately. I wish I could soon hammer out a song.
The verb "hammer" must be conjugated according to its tense.
If you're off your trolley, your ideas or behaviour are crazy or insane.
You really think whether i'll pay the debt. You're off your trolley