It is pronounced as "qiba" in Chinese, and it sounds similar to "jiba" in Chinese, which means penis, and Chinese people often use penis as a swear world, so every time they want to swear but without using the real bad word, they will use "qiba", which is seven eight to instead.
Rude way: You are so jiba stupid
Polite way: You are so qiba(seven eight) stupid
When you take 7 hits of acid in the morning to get through the day
Damn, volunteer did a morning seven today. It's gonna be fun
A Mod expression for the 1960s. Mod was an aspirational working class youth culture which used sharp and sartorial style as a rebellious statement against their allotted place in life so many expressions were associated with this. So English expression 'at sixes and sevens' means in a physical or metaphorical mess, all over the place, and was used by Shakespeare. But the price of t shirts in Woolworth's selling discounted which were inferior quality clothing to that which the Mods aspired, was seven shillings and sixpence written 7/6- . The two references materialized in the Mod terms 'Not your 7/6' meaning something was not cheap and/or messy clothing
"The mod lifestyle was about conspicuous spending on quality goods. Suits had to be tailored, not bought off-the-peg, and anyone who did turn up at an all-nighter wearing a low-cost version of mod fashion would be labelled a seven and six. The numbers are a reference to pre-decimalized British currency and the cost of cheap T-shirts in Woolworths." Fraser McAlpine BBC World Service
"Of course it's a nice suit what did you think? Real mohair mate not your seven and six- "
"She turned up lookin' a bit seven and six to be honest I wouldn't date her again"
having sex with seven men and or women at the same time
can't wait to turn the dirty seven thirty around