It could happen at the drop of a pin

This malaphor was heard on the local Pittsburgh PBS show, “On Essential Pittsburgh”.  It is a mash up of “at the drop of a hat” (immediately) and “(so quiet that) you could hear a pin drop” (extremely quiet).  Drop is the shared word and the probably cause of the confusion.   Kudos to Sally Adler for hearing this one and sending it in!

I fall asleep at the drop of a dime

This wonderful congruent conflation is a mash up of  “at the drop of a hat” and “stop on a dime”, both meaning an action done instantly.  Drop and stop are four letter words that rhyme, adding to the befuddlement.  This beauty was heard at a court hearing.  Kudos to Sam Edelmann for sending this one into Malaphor central!