Here you will find the Poem booh! of poet Eugene Field
On afternoons, when baby boy has had a splendid nap, And sits, like any monarch on his throne, in nurse's lap, In some such wise my handkerchief I hold before my face, And cautiously and quietly I move about the place; Then, with a cry, I suddenly expose my face to view, And you should hear him laugh and crow when I say "Booh"! Sometimes the rascal tries to make believe that he is scared, And really, when I first began, he stared, and stared, and stared; And then his under lip came out and farther out it came, Till mamma and the nurse agreed it was a "cruel shame" - But now what does that same wee, toddling, lisping baby do But laugh and kick his little heels when I say "Booh!" He laughs and kicks his little heels in rapturous glee, and then In shrill, despotic treble bids me "do it all aden!" And I - of course I do it; for, as his progenitor, It is such pretty, pleasant play as this that I am for! And it is, oh, such fun I and sure that we shall rue The time when we are both too old to play the game "Booh!"