From the Origin:
1635–45; < It trillo quaver or warble in singing ≪
Gmc; cf. D give trillen to vibrate, late ME trillen to shake or rock (something)
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verb (used with object)

1. to sing or play with a vibratory or quavering effect.

2. Phonetics. to produce (a sound) with a trill.

3. (of birds, insects, etc.) to sing or utter in a succession of rapidly alternating sounds.

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verb (used without object)

4. to resound vibrantly, or with a rapid succession of sounds, as the voice, song, or laughter.

5. to utter or make a sound or succession of sounds resembling such singing, as a bird, frog, grasshopper, or person laughing.

6. to execute a shake or trill with the voice or on a musical instrument.

7. Phonetics. to execute a trill, esp. with the tongue, as while singing, talking, or whistling.

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noun

8. the act or sound of trilling.

9. Music. a rapid alternation of two adjacent tones; a shake.

10. a similar sound, or succession of sounds, uttered or made by a bird, an insect, a person laughing, etc.

11. Phonetics.
a. a sequence of repetitive, rapid, vibratory movements produced in any free articulator or membrane by a rush of air expelled from the lungs and often causing a corresponding sequence of contacts between the vibrating articulator and another organ or surface.

b. a speech sound produced by such a trill.
’if we can discover the meaning in the trilling of a frog,
perhaps we may understand why it is for us not merely noise but a song of poetry and emotion.’

adrian forsyth
by citypix November 11, 2009
The word Trill means to be cool or to have a skrait life moment... it can also be used to mean True Rights In Love and LIfe... this is how i c the word Trill or T.R.I.L.L.
Also it can be made into a plural noun (Trills)
Yeah even though im not in love with her i still like her. Trill.

Man last night was to crazy i think we should do it again.
Trills.
by RayGlo January 16, 2008
Having, or experiencing the euphoric feeling of, sex with the sky/universe. Feeling totally connected to everything; Basically awesomeness captured and bottled with all things cool and then released into your bloodstream.
We're just straight up trillin on blunt rock.
by Trillen McTriller December 26, 2007
Trill is a group of ignorant low-lifes that tend to reside in Downtown Albany (229 time) Georgia. This group of neanderthals classify themselves as Emo/Scene kids. They are for the most part seventeen and under in age, and most wear girls jeans followed by there black dyed hair and "Emo hair styles". Some are characterized with features such as large nose's which was never evolved from there prehistoric ancestors. Nor has their mental capasity enlarged or expanded, making them no better than the neanderthals they were once classified as. At least the neanderthals of the past did not wear the opposite sexes clothing.
Rat-face girl and her shrimp for a man. Ignorant "Emo" kids who strive for attention which never become anything more than a common street rat henze their apperance also. The Australians state that Trill is "To give a blowjob to a guy while driving, when there are three girls in the back seat watching on at these events.

Damn girl, i can't believe you just gave that guy a Trill!"
by Thraind September 19, 2006
Someone who seems to have multiple personalities, or is two-faced.

Derived from the Trill species in the fictional Star Trek universe, in which a host's personality changes when merged with a symbiont.
"Dude, she was all over you last night, now she's being a major bitch. What's the deal?"
"She's fucking trill."
by Meus Nex October 24, 2008
The first ones that said it was UGK from Port Arthur, Texas. There was an Apartment Complex named Trill Villa down in the hood there.
DJ-DMD "yeah, nowadays it seems everybody and they momma... wanna be trill. shit... niggaz don't even know what the fuck that shit means.... that's a P.A. Term mutha fucka!"
by burble07 September 06, 2007
A fictional culture in Star Trek. True Trills consist of a humanoid host and a worm-like symbiote that lives inside the abdominal cavity. There are at least two traditional host species; other races such as Humans can only serve as a temporary hosts with medical assistance.

The host has the benefit of the symbiote's lifetime of wisdom and experiences through several previous hosts. Each symbiote has its own name, which becomes part of the host's identity. Joined trills have unique personalities blended from both beings.
Star Trek DS9 had two Trills among the main characters. Both Ezri and Jadzia were joined to Dax.
by gooberliberation October 24, 2005

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