Why Do Ghosts Say 'Boo'? - Mental Floss

Mental Floss
Why Do Ghosts Say 'Boo'?
Mental Floss
People have screamed "boo," or at least some version of it, to startle others since the mid-16th century. (One of the earliest examples documented by the Oxford English Dictionary appeared in that 1560s poetic thriller, Smyth Whych that Forged Hym a ...