ggininder
Having a boner. It's derived from Taiwanese online forum slang. GG = penis, ininder = getting hard.
i'm feeling ggininder just by looking at that girl.
GGininder
A popular slang used in Taiwan PTT Bulletin Board System, which means that a man's penis expands and holds the erection. It mimics the sounds of traditional Chinese words "雞雞硬硬的" and the letters can be large or small, such as "ggininder".
John: Wow, the girl is so hot!
Tom: Yeah, ggininder!
Tom: Yeah, ggininder!