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The person that said it was very animated and happy, but it sounded exactly
like the word psycho. Thank you.
CC BY-SA 3.0
2017-03-29T16:41:53.753
45011
2018-04-06T13:12:08.787
18435
question
translation meaning
I heard a word that sounded like psycho in English, what does it mean?
[最高]{さい・こう} means "the highest/maximum/best/greatest".
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2017-03-29T16:48:18.113
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2017-03-29T16:48:18.113
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最{さい}高{こう}, or sometimes stylized サイコー, particularly as an interjection, is an
expression of how fun / cool / enjoyable something is -- as was the case in
your question.

However, as istrasci pointed out, in itself 最{さい}高{こう} means the superlative
of some state.  
Some examples: 最{さい}高{こう}級{きゅう} -- Highest grade / class / rank.  
最{さい}高{こう}経{けい}営{えい}責{せき}任{にん}者{しゃ} -- Chief Executive Officer (literally the
"highest person responsible for business administration").
CC BY-SA 3.0
2017-03-30T01:22:30.323
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2017-03-30T01:22:30.323
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最高(さいこう) is used exactly like "awesome" is used in American English. It is
mostly used in spoken language, rarely in written language.
CC BY-SA 3.0
2017-03-30T02:24:41.740
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2017-03-30T02:24:41.740
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answer