An Auto-Antonym, can mean to do something with great vigour or with little enthusiasm. Context specific.
1. To attack something with vigour. Evolved from the noun Biff meaning a sudden sharp blow or punch
2. To have sex very enthusiastically. Linked noun Biff.
3. To stroll about meaninglessly. Origin unknown.
1. Brigadier Ben Ritchie Hook in Evelyn Waugh's Sword of Honour Trilogy: "Time for a Spot of Biffing!" (In reference to attacking the Enemy during the Second World War, immediately before he storms a pill box, alone, armed only with a machine gun and grenades)
2.
D: "I heard you biffing last night O, keep it down next time"
O: "Sorry D, I had no idea I was so loud."
D: "Its alright man. It was pretty funny actually, you sounded like a cavalry charge"
3.
D: "How was your day?"
O: "It was okay I guess. I biffed around town for a bit, but it was pretty pointless"
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If someone is "biffing" they are lying or exaggerating about a situation. It can also be used by calling someone a "biffer" if they are known to lie.
He's a big BIFFER, ket sniffer, clit flicker.
Oi! Quit biffin you little rapscallion!
Mum's comin' up da stairs! nah, quit biffing bro.
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When somthing is moving extremely fast
Yo that motorcycle was biffing it
To creep, to be seen and not heard.
Biff opened the group chat and didn't say a word. Hes biffing
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To be baffled whilst under the influence of ketamine
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To fall on your face or in an absolutely ridiculous fashion, often suffering and being badly injured in the act.
Boy runs into a tree and breaks his leg.
"Wow, that kid totally biffed it!"
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To fall on your ass, like a clumsy fool
"Dude i was like grinding like nobodys business when I just biffed it"
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