From an 1897 Strand feature on odd Bibles:

Perhaps the rarest of all the curious Bibles is the famous ‘Bugge’ Bible, an edition of Matthew’s Bible, published in 1551. In this we read, at Psalms xci., 5, ‘So that thou shalt not nede to be afrayed for anye bugges by nyghte.’

Possibly “bugge” was understood as equivalent to the modern word bogie, or ghost. See Oops.