You can overdose on coffee if you drink about 30 cups in a brief period to get close to a lethal dosage of caffeine.
shadowbox
(verb) go through boxing motions without an opponent
Source: WordNet® 3.1
shadowbox (plural shadowboxes)
A diorama
shadowbox (third-person singular simple present shadowboxes, present participle shadowboxing, simple past and past participle shadowboxed)
(boxing, martial arts) To practice moves without an actual opponent, often in front of a mirror.
Source: Wiktionary
12 May 2025
(adjective) not tried or tested by experience; “unseasoned artillery volunteers”; “still untested in battle”; “an illustrator untried in mural painting”; “a young hand at plowing”
You can overdose on coffee if you drink about 30 cups in a brief period to get close to a lethal dosage of caffeine.