Definition of underground
underground 
adjective
- secret.
- See more words with the same meaning: quiet, secret.
Last edited on Dec 05 2011. Submitted by Walter Rader (Editor) from Sacramento, CA, USA on Sep 21 2009.
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Slang terms with the same meaning
Other terms relating to 'quiet, secret': | |
| Definitions include: "on the down low", i.e. secret. | |
| Definitions include: "cutie." | |
| Definitions include: away from public scrutiny. | |
| Definitions include: mom aka "mother". | |
| Definitions include: secretive. | |
| Definitions include: See on the DL. | |
Slang terms with the same root words
None. How about some random words?
| Definitions include: get caught doing something one shouldn't | |
| Definitions include: abbreviated form of "naturally". | |
| Definitions include: a weird or disturbed person. | |
| Definitions include: Used to describe an action. | |
| Definitions include: upset. | |
| Definitions include: something that one is very good at. | |
| Definitions include: a non-offensive expletive. | |
| Definitions include: weak. | |
| Definitions include: a non-conventional doctor. | |
| Definitions include: a short form (abbreviation) of the name John. |
How common is this slang?
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| No longer use it | (0) | |
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| Heard it but never used it | (1) | |
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| Have never heard it | (2) | |
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