Matching Pairs AllusionsOnline version Allusions by Cynthia Cox 1 Mrs. Grundy 2 All That Glitters is not Gold 3 Pound of Flesh 4 Gordian Knot 5 Sound and Fury 6 Pearls Before Swine 7 Sacred Cow 8 Once in a Blue Moon 9 Betrayed with a Kiss 10 Ivory Tower 11 Achilles Heel 12 Thirty Pieces of Silver 13 Read the Riot Act 14 Crossing the Rubicon 15 Sirens 16 Crocodile Tears Something that happens rarely A vulnerability or point of weakness Anything that tempts someone away from safety and towards a dangerous path Something that cannot be interfered with or harmed in any way something which appears valuable on the outside may in fact be less than valuable; appearances can be deceptive To take an irreversible step, often involving some danger To issue a stern warning that if unacceptable behavior does not cease, severe consequences will follow. To show false sympathy A person who is secluded or protected from the real world and thus out of touch with reality a supposed friend's treachery Describes someone's insistence on being paid, even if repayment will destroy the debtor An attitude of narrow-minded prudishness to offer something precious to someone who are unable to appreciate the value of what is given refers to a great, tumultuous, and passionate uproar that is actually unimportant or meaningless Any extremely complex problem payment received for an act of treachery