Everything about the coin flipping (coin tossing; heads or tails)
(https://upload.wikimedia.org/wikipedia/commons/0/0f/Pile_ou_face.png)"Tossing a coin" By Ipipipourax - Own work, CC0, https://commons.wikimedia.org/w/index.php?curid=14758687
Probably all of you saw it at least once till now. And you call it in different way: flip a coin, coin flip, heads or tails, flip coin, coin toss. It (coin flipping, coin tossing, or heads or tails) is the practice of throwing a coin in the air and checking which side is showing when it lands to choose between 2 alternatives, sometimes to resolve a dispute between two parties. (It is a form of sortition which inherently has only two possible and equally likely outcomes.) More about it in Wikipedia: https://en.wikipedia.org/wiki/Coin_flipping.
(https://upload.wikimedia.org/wikipedia/commons/thumb/e/e8/Coin_tossing.JPG/800px-Coin_tossing.JPG)"Tossed coin" By Филип Романски - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=24651442
Online flip coin generator
Yes, there are many online flip coin generators. I like this flip coin generator: https://www.random.org/coins/. It allows you to flip virtual coins and the randomness comes from atmospheric noise, which for many purposes is better than the pseudo-random number algorithms typically used in computer programs.
How to say "coin flipping" in other languages
In other languages (non-English):
- Spanish: Cara o cruz
- German: Münzwurf
- Russian: Подбрасывание монеты
- French: Pile ou face
- Japanese: コイントス
- Korean: 동전 던지기
- Turkish: Yazı tura
- Greek: Κορώνα ή γράμματα
- Finnish: Kolikon heittäminen
- Swedish: Slantsingling
- Dutch: Kruis of munt
- Chinese: 抛硬币
More about the coins: https://www.britannica.com/topic/coin.