- splinter off (fromsomething)
- splinter off ((of) something) & splinter off (fromsomething)[for a bit of something] to tear off or separate from something. (
Of
is usually retained before pronouns.) •A piece of wood splintered off of the oar and dropped into the water.
•A tiny bit splintered off and stuck in my hand.
Dictionary of American idioms. 2013.