Meriadoc Brandybuck, more often called Merry, less often called by his untranslated Westron name, Kalimac Brandagamba, is a Hobbit and member of the Fellowship of the Ring from The Lord of the Rings. He is a cousin of Frodo Baggins and of Peregrin Took (Pippin), who is also his best friend. He and Pippin are instrumental in bringing the Ents to fight at Isengard.
Merry also fights with the company of Rohan in the Battle of Pelennor Fields and helped command the Scouring of the Shire.
Merry is intelligent, trustworthy and valiant, possessed of a fine singing voice (like most Hobbits) and a well-developed sense of humour.
In the Movies, Merry is played by Dominic Monaghan.
In badfic, Merry is often assumed to be, basically, one half of a comic duo known as 'Merry and Pippin', who are inseparable both physically and in terms of characterization. They are prone to doing stupid things and being mothered by the Sue of the story. Occasionally, one or both of them may be harmed in order for the Sue to rescue them.
In Bad Slash
In bad slash, Merry is almost invariably paired with Pippin, although many disturbing stories involving one or both of the 'Merry and Pippin' creature and Boromir have been written and labeled crackfic. Merry/Pippin bad slash frequently involves hurt/comfort.