Examples from the Web for scatterbrain
Scatterbrain's agent said 't was unfair, and desired the polling-clerk not to record the vote.
Scatterbrain demanded of Dick another shot on the part of O'Grady.
O'Grady waved his hand in signal to his body-guard, and Scatterbrain had three cheers from the ragamuffins.
Here are letters for you—I want to know what's in them—Scatterbrain's come—do you know that?
British Dictionary definitions for scatterbrain
Word Origin and History for scatterbrain
also scatter-brain, "thoughtless, giddy person, one incapable of serious, connected thought," 1764 (scatter-brained), from scatter (v.) + brain (n.). Related: Scatterbrained. Cf. scatter-good "spendthrift."