beat [cudgel, rack] one's brains
((略式))一所懸命に考える,知恵を絞る
beat A's brains out
((略式))A(人)の頭を強くなぐってけがをさせる[殺す]
blow one's [A's] brains out
((略式))頭を撃ち抜いて自殺する[A(人)を殺す]
have [have got] A on the brain
((略式))Aのことばかり考えている
pick A's brain(s) [the brains of A]
A(人)の知恵を借りる
tax one's (own) [A's] brain
知恵を絞る[A(人)に知恵を絞らせる]
turn one's [A's] brain
A(人)の頭をおかしくする