E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
the weaver. A man who fancies he can do everything, and do it better than anyone else. Shakespeare has drawn him as profoundly ignorant, brawny, mock heroic, and with an overflow of self-conceit. He is in ne part of Midsummer Nights Dream represented with an asss head, and Titania, queen of the fairies, under a spell, caresses him as an Adonis.
The name is very appropriate, as the word bottom means a ball of thread used in weaving, etc. Thus in Clarks Heraldry we read, The coat of Badland is argent, three bottoms in fess gules, the thread or.
When Goldsmith, jealous of the attention which a dancing monkey attracted, said, I can do that, he was but playing Bottom.R. G. White.