Floppy Jalopy Share definition Flag A derogatory term which can be used in place of "erectile dysfunction." "Yeah, I went to the doctor to get my floppy jalopy checked out, and they put me on Levitra." Floppy Jalopy by submison February 22, 2009 0 0 Get merch Get the Floppy Jalopy mug. Buy Now — $32.95 See more merch