crackheadn.
'krækhed
中文n. [俚语]可卡因瘾君子，吸服强效纯可卡因成瘾者 \n
词根词源
crackhead (n.)slang, "crack cocaine addict," by 1986, from crack (n.) in the drug slang sense + head (n.). In earlier slang, crack-headed meant "crazy" (1796), from the literal sense of crack.
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