Meanings

deep blue sky

die blade

National High School Baseball Invitational Tournament (held annually in March at Koshien Stadium)

bleed-through

(knockout) tournament

to swing (a bat, racket etc.) all the way through

skipping a port (due to bad weather, etc.)

to train thoroughly (one's body, muscles, etc.)

oversight

unplugging (a cable, device, etc.)

to pierce

to pull out (with force)

to thoroughly abuse

without any reason

card game variant of old maid

root removal

ponnuki

reverse printing

soaking of clams in salt water to remove grit

pouring boiling water over fried dishes to remove excess oil