LOOP

literally, a length of film or magnetic tape whose ends have been joined to form an endless strip, so that continuous repetition of the recording is made possible (e.g., in rehearsing the synchronization required for dubbing a foreign-language sound track). Used figuratively. —DMSMH Glossary (app. 14.7.90)

(slang) a crazy person. —SHSBC Binder 2 Approved Glossary

a redoubling of the time track, back on itself. In this case incidents are not in their correct place on the time track. (DTOT, p. 142)