This one comes from the tv show Scrubs. While intentional, it’s a classic malaphor and worth posting (although it does go against the rules that the malaphor spoken or written should be unintentional). Still, too good to pass up. It’s a mashup (of course) of “thick as thieves” (a close alliance or friendship) and “like two peas in a pod” (similar interests or beliefs). This one works on many levels – similar idioms, and the rhyme of “peas” and “thieves”. A big thanks to Elly Pietrucha for spotting this one on a rerun.