molly

noun (1)
mol·​ly | \ ˈmä-lē How to pronounce molly (audio) \
variants: or less commonly mollie
plural mollies

Definition of molly

 (Entry 1 of 2)

: any of various small, often brightly colored tropical fish (genus Poecilia) that are live-bearers found in fresh, brackish, or salt water and include several that are highly valued as aquarium fishes

Molly

noun (2)
Mol·​ly | \ ˈmä-lē How to pronounce Molly (audio) \

Definition of Molly (Entry 2 of 2)

informal
: the illicit drug ecstasy (see ecstasy sense 4) especially when in a powdered or crystalline form contained in a capsule Boston Police said Thursday that a dangerously pure form of the drug ecstasy, known as Molly, appeared to be a factor in the mass illnesses the night before at TD Garden, where more than 80 young people attending an electronic dance music concert became sick …— Evan Allen Experts say Molly, though often touted as pure, is often mixed with other drugs and ingredients, perhaps even more than the Ecstasy of yesteryear.— Helena Oliveiro

First Known Use of molly

Noun (1)

1933, in the meaning defined above

Noun (2)

2000, in the meaning defined above

History and Etymology for molly

Noun (1)

by shortening from New Latin Mollienisia, former genus name, from Comte François N. Mollien †1850 French statesman

Noun (2)

of obscure origin

Note: Perhaps from the given name Molly, but if so the motivation is unclear. In the United Kingdom a parallel name for a powder or capsule form of the drug is mandy, which bears somewhat greater resemblance to the initialism MDMA. There appears to be no compelling reason to take molly as a clipping of molecular. Note that black molly was a jargon term for amphetamine capsules in the 1970's (see entry in The New Partridge Dictionary of Slang and Unconventional English [Routledge, 2005]).

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Time Traveler for molly

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The first known use of molly was in 1933

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Cite this Entry

“Molly.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/molly. Accessed 13 December 2019.

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More Definitions for molly

Molly

noun
Mol·​ly | \ ˈmä-lē How to pronounce Molly (audio) \

Medical Definition of Molly

: the illicit drug ecstasy especially when in a powdered or crystalline form contained in a capsule Experts say Molly, though often touted as pure, is often mixed with other drugs and ingredients, perhaps even more than the Ecstasy of yesteryear.— Helena Oliveiro, The Atlanta Journal-Constitution, 8 June 2013

More from Merriam-Webster on molly

Rhyming Dictionary: Words that rhyme with molly

Britannica.com: Encyclopedia article about molly

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