(n.) The contents of the cranium; the brain.

Irish potato Kraut a continental a curse a damn a darn a hoot algae aubergine autophyte bagatelle bauble beans belfry bibelot bit bracken brain brass farthing brow brown algae button cabbage cent climber conferva confervoid conk creeper crown curio diatom dome eggplant encephalon farce farthing feather fern fig fleabite folderol fribble frippery fruits and vegetables fucus fungus gaud gewgaw gimcrack grapevine gray matter green algae greens gulfweed hair halfpenny head headpiece herb heterophyte hill of beans ivy jest joke kelp kickshaw knickknack knickknackery legume legumes lentil liana lichen liverwort love apple mad apple minikin mockery mold molehill moss mushroom noddle noggin noodle organ of thought parasite parasitic plant pate pea peppercorn perthophyte phytoplankton picayune pieplant pin pinch of snuff pinprick planktonic algae plant families poll potato potherbs produce puffball pulse rap red algae red cent rhubarb ridge rockweed row of pins rush rust saprophyte sargasso sargassum sconce sea lentil sea moss sea wrack seat of thought seaweed sensation sensorium sensory shit smut snap sneeshing sou spud straw succulent tater toadstool tomato toy trifle trinket triviality tuppence two cents twopence vegetables vetch vine whim-wham white potato wort wrack