suffix
Internet slang suffix attached to adjectives, verbs, or nouns to express excessiveness, similar to すぎる but with a humorous or exaggerated tone. Originates from the name of baseball player 杉内俊哉 (Sugiuchi Toshiya) combined with すぎる.
See also: すぎる
このラーメン、うま杉内!
This ramen is too good!
昨日のテスト、難し杉内だった。
Yesterday's test was so hard.