pitch in
To help out; lend assistance; contribute; to do one's part to help.
If we all pitch in, we can raise enough money for the renovation of the church.
noun
A sticky, gummy substance secreted by trees; sap.
It is hard to get this pitch off my hand.
A dark, extremely viscous material still remaining after distilling crude oil or natural tar.
Near-synonyms: tar, coal tar, asphalt, bitumen
They put pitch on the mast to protect it.
Pitchstone.
verb
To cover or smear with pitch.
“Make thee an ark of gopher wood; rooms shalt thou make in the ark, and shalt pitch it within and without with pitch.”
To darken; to blacken; to obscure.
1704 (published), year written unknown, John Dryden, On the Death of Amyntas Soon he found / The welkin pitch'd with sullen clouds.
adj
Very dark black; pitch-black.
For quotations using this term, see Citations:pitch.
Intense, deep, dark.
Then I got back here - difficulty again: no trolly-bus, and and black pitcher than black - and have since been conning the Beveridge Report.
If you lose even once, that's it: The screen goes, like, the pitchest black ever, and you're [out].