冷汗

冷汗	lěng hàn	cold sweat
冷	Lěng	surname Leng
冷	lěng	cold
汗	hán	see 可汗, 汗国
汗	hàn	perspiration / sweat / CL:滴,头,身 / to be speechless (out of helplessness, embarrassment etc) (Internet slang used as an interjection)