Clamato tomato juice
This is a commercial drink made of reconstituted tomato juice concentrate and sugar, which is flavoured with spices, dried clam broth and MSG. Made by Mott's, the name is a portmanteau of clam and tomato. It is also referred to colloquially as "clamato juice".
Mexicans use this juice to create the most delicious bloody mary or if you dare try a Mexican michelada.