1) Bumbling sort 2) Dork 3) Fool 4) Goofy oaf 5) Jerk 6) Not a nice guy 7) Nudnik 8) Schmendrick 9) Schmo 10) Schmuck 11) Shlemiel or shlemazel 12) Shmuck 13) Slang for a foolish person 14) Unlikable guy Found on https://www.crosswordclues.com/clue/shmo