pillow/bolster/introduction (e.g. to a rakugo story)/lead-in
commonnounnoun, used as a suffix
URL
鮪;まぐろ;しび;マグロ
tuna (edible fish, Thunnus spp.)/tunny/Pacific bluefin tuna (edible fish, Thunnus orientalis)/dead lay/starfish/person who is inactive during sexual intercourse