Anaconda
Anacondas are a group of large snakes of the genus Eunectes. They are found in tropical South America. Four species are currently recognized.
Wikipedia
Python (noun)
A type of large constricting snake.
Python (noun)
penis
Anaconda (noun)
Any of various large nonvenomous snakes of the genus Eunectes, found mainly in northern South America. Their length can grow to as much as 5 m (15 ft).
Anaconda (noun)
A large penis.
Anaconda (proper noun)
A particular variety of stud poker.
Wiktionary
Python (noun)
a large heavy-bodied non-venomous snake occurring throughout the Old World tropics, killing prey by constriction and asphyxiation.
Python (noun)
a high-level general-purpose programming language.
Oxford Dictionary