also: はげど
interjection
I strongly agree; totally agree
Internet slang abbreviation of 激しく同意 (hageshiku dōi). Jocular and emphatic; used in online forums and chats to express strong agreement. The kanji 禿 (bald) is a playful substitution for 激 (intense).
A: このアニメ最高だよね。B: 禿同！
A: This anime is the best, right? B: Totally agree!
その意見にはげどうです。
I strongly agree with that opinion.
The full phrase from which 禿同 is abbreviated. 禿同 is slangy and jocular, while 激しく同意 is more standard but still emphatic.
Abbreviation of 激しく同意 (hageshiku dōi, 'strongly agree'), with the kanji 激 (intense) replaced by the homophonous 禿 (bald) as a humorous pun.