フクロウの鳴き声を模した擬音語で、後にラッパの鳴き声にも使われる。honkと比較。
"A dod blasted ole fool!" answered the captain, who, till now, had been merely an amused on-looker. "Ye know all this rumpus wont do nobuddy a hoot o' good--not a hoot." ["Along Traverse Shores," Traverse City, Michigan, 1891]Hooter in the same sense is from 1839.
HOOTER. Probably a corruption of iota. Common in New York in such phrases as "I don't care a hooter for him." "This note ain't worth a hooter." [John Russell Bartlett, "Dictionary of Americanisms," 1877]