he; boyfriend

a shrub with thorns: a bramble, a briar / thorn / a thorny flower of the genus Rosa: a rose

thorn

(idiomatic) A piece of cake; an extremely simple thing, something trivial, a cinch, easy as pie.

朝飯前: A piece of cake; an extremely simple thing.

(telephony) a common Japanese telephone greeting: hello; used when answering the telephone / used to confirm that the person being addressed is listening, or to confirm if anyone is listening

put away

(emphatic) Synonym of 刺す (sasu)

finish off, deliver the final blow (so to ensure (something) is dead) / (idiomatic) deliver the final blow (so to ensure (someone or something) to have no hope for recovery)

(idiomatic, figuratively) to give a warning, to remind a person of