crackpot; mental; coo-coo; cracked; daffy; nut job(Шандор); crack-brain; unhinged(человек Val_Ships); out there(Ремедиос_П); nutso(Taras); screwball(a crazy or eccentric person (Oxford Dictionary)
• "she was dating a real screwball" (Oxford Dictionary) • Another screwball. I've met three so far today. (Raymond Chandler)
ART Vancouver); nutty(VLZ_58); loon(Yokky); weirdo(Every time I take the bus to work, there's at least one weirdo across from me talking to himself, staring at me, picking his nose, or licking his fingers after eating french fries.ART Vancouver); cracky; defective(ругательное chronik); weird(MichaelBurov); batchy; out of gourd(Также может использоваться предлог 'off". VLZ_58); sick(You're sick! She's your sister! How could you do that to her? • This sick bastard should be so ashamed!ART Vancouver); fruitcake; nuts(As I was driving in Greenville I saw the sun come out. I knew I needed to get to the beach within mins. I got to Seaview and ran to the beach. Set up my tripod, moved some settings, never messed with focus and started chucking rocks and snapping pics. People are looking at me like I am NUTS! You guys already know I am nuts and now just a few more Seaview residents found out. (Twitter)ART Vancouver); nutcase(a foolish or eccentric person (Merriam-Webster); also spelled "nut case" • Date Helen? You gotta be kidding. She's a nut case. I wouldn't touch her with a ten-foot pole.
ART Vancouver)
imdb.com driven); Jack o' Bedlam; Jack of Bedlam; Tom o' Bedlam; Tom of Bedlam