4_eyes



bird_brain



black_eye



blockhead



brain_washed



brainstorm



crackhead



ear_drum



egg_head



face_lift



feeling_light_headed



fisheye_lens



gearhead



general_electric



good-bad



happy-sad



head_games



head_in_the_clouds



headphone



headstand



hole_in_his_head



insight



lockjaw



look_both_ways



missing_a_few_marbles



my_minds_eye



nosey_neighbor



out_of_my_mind



piece_of_mind



pot_head



question_slipped_my_mind



screwed_on_right



strong_headed



tech_head



think_outside_the_box



water_on_the_brain