airhead — If you describe someone, especially a young woman, as an airhead, you are critical of them because you think they are not at all clever and are interested only in unimportant things.
chump — If you call someone who you like a chump, you are telling them that they have done something rather stupid or foolish, or that they are always doing stupid things.
dodo — any of several clumsy, flightless, extinct birds of the genera Raphus and Pezophaps, related to pigeons but about the size of a turkey, formerly inhabiting the islands of Mauritius, Réunion, and Rodriguez.
dope — any thick liquid or pasty preparation, as a lubricant, used in preparing a surface.
dork — Slang. a silly, out-of-touch person who tends to look odd or behave ridiculously around others; a social misfit: If you make me wear that, I’ll look like a total dork! Synonyms: jerk, schmo; nerd, geek.
dumbbell — a gymnastic apparatus consisting of two wooden or metal balls connected by a short bar serving as a handle, used as a weight for exercising.
nitwit — a slow-witted, stupid, or foolish person.
sap — Fortification. a deep, narrow trench constructed so as to form an approach to a besieged place or an enemy's position.
simpleton — an ignorant, foolish, or silly person.
stupid — lacking ordinary quickness and keenness of mind; dull.
yo-yo — a spoollike toy consisting of two thick wooden, plastic, or metal disks connected by a dowel pin in the center to which a string is attached, one end being looped around the player's finger so that the toy can be spun out and reeled in by wrist motion.
