Dogecoin (DOGE) is a meme-inspired cryptocurrency launched in 2013 based on the Litecoin codebase, featuring the Shiba Inu dog meme and a strong, charitable community. It uses proof-of-work with no hard supply cap, resulting in ongoing inflation, and is known for tipping, charitable donations, and cultural influence in crypto. DOGE has gained mainstream attention through social media and celebrity endorsements.