Read the excerpt from act ii of hamlet. hamlet: slanders, sir: for the satirical rogue says here that old men have grey beards, that their faces are wrinkled, their eyes purging thick amber and plum-tree gum, and that they have a plentiful lack of wit, together with most weak hams: all which, sir, though i most powerfully and potently believe, yet i hold it not honesty to have it thus set down; for you yourself, sir, should be old as i am, if, like a crab, you could go backward. which is a metaphor? old men have grey beards, that their faces are wrinkled their eyes purging thick amber and plum-tree gum all which, sir, though i most powerfully and potently believe be old as i am, if, like a crab, you could go backward