Reality-filled [ria-juu - リア充]: This internet slang is used to describe people who lead fulfilling lives in the real world (as opposed to the virtual online world). Examples of "reality-filled" people include those who enjoy relationships with others in the real world, those who attend parties or participate in group activities, and those who pursue non-otaku interests.
A word used among teenage girls to mean ‘high spirits’ or ‘a heightened feeling (of excitement)’. It originated from previously used slang terms あげ〜 (age) to mean ‘lift up’ and was cutified by sticking ぽよ (po-yo) on the end. The opposite is sagepo-yo (さげぽよ), to feel down.
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It means that the "tension" goes up.
Gyaru is one out of many fashion styles that people in Japan use.
So whenever something good happends, it's Agepoyo!
Meeting people with super long nails is...
...Agepoyo!!
Unfortunately, there is also something called Sagepoyo...
Sagepoyo is the opposite of Agepoyo. The tension goes down.