out on a limb

US /aʊt ɑn ə lɪm/
UK /aʊt ɑn ə lɪm/
"out on a limb" picture
1.

危険を冒して, 孤立して

in a dangerous or isolated position where one is dependent on others

:
He went out on a limb to support his friend, even though it meant risking his own reputation.
彼は自分の評判を危険にさらすことになっても、友人を支持するために危険を冒した
If you go out on a limb and make that claim, you'd better have evidence to back it up.
もしあなたが危険を冒してその主張をするなら、それを裏付ける証拠を用意した方がいい。