Don't give me any lame excuses next time!
下次别再用这样蹩脚的借口!
形容词lame的本意是“瘸的”(Disabled so that movement, especially walking, is difficult or impossible),用来形容借口、理由,就是“站不住脚的”(Weak and ineffectual; unsatisfactory)。
例句:
Having class on weekend is lame 周末上课是个馊主意。
Sleeping too long is a lame excuse for being late. 睡得过久而迟到, 这个借口站不住脚。