"Juicem" is an abbreviation to "Juice Them". A friendly domain name designed for a company in the drink industry.
Juicem has only six characters and just two syllables. Two-syllable names are highly rare and extremely desirable. Leading companies using two syllable names include Pepsi, Buffer and Facebook.
Juicem.com is a dot-com domain. Dot com domains are the most prestigious domain extension in the world, famously used by websites like google.com. When most people think of a website, they think of a dot-com.