I think we'll be over $300 before Friday.
Anyone want to bet me 1 BTC?
I am in! I bet you 1BTC that the BTC price will be =< $299 by Friday 9th January 2015 12:00am West European time. We will take Coinmarketcap BTC Price as a reference.
Do we have a bet?
You owe me 1 BTC. When can I expect payment?
CHOW CHOW I want my 1 BTC right away.
Did the price not touch 300?

see? one keyboard warrior detected

he is now quibbling with you that "I think we'll be over $300 before Friday." == "touch $300 before Friday"
Excellent. I havent looked but has the price in fact been 'over 300 before Friday'?