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to be sneaky and quiet.

synonyms include: wily, cat-like.
Lauren: let's put some grass in Kelly's hair!!!

Aimee: Okay, but we have to be stealthy.
(they sneak up quietly behind Kelly and put grass in her hair)

Kelly: why is there grass in my hair?!! Ohhhhh...... you two are very stealthy.
by Maudington July 07, 2009
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Nov 27 Word of the Day
A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.
That fucking smooth brain put his shirt on backwards again...

That smooth brain is dumber than a pile of shit.
by Tip Tank May 14, 2011
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dane joella-like

the quality of being able to exit a room in a college dormitory without notice by emily smith.
dane stealthily exited room 422 while emily sat on sarah's bed.
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a skateboarding term for cleanliness after a clean trick is landed.
making everyone silent after the trick is landed, hence, STEALTHY
Damn did you see Nile Gibbs land that stealthy ass nollie lazer flip
by PJ E. Ladd January 08, 2009
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When your mate secretly naps and turns off all communications.
"Where's Ray? He's not answering his phone.. He must be doing stealthys"
by MrKman1 May 26, 2012
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cunning and deceiving

-this is to ashleigh and emily:
"hey, you want to hear a story?"
"Well, the other day I was at school, there are a lot of asians and gingers there..and i was stealthy and creeped up on this one asian, WHO WAS SITTING NEXT TO A GINGER!"
"Why..this is crazy!"
"I know right!? I was being cunning and deceiving!"
by asiansgingersblacksmexicans January 20, 2010
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A fairly queer young male who is oft an annoyance to the masses. Known to frequent chatrooms and present himself as a female.
That guy 'stealthy' is a real creep.
by Justin Franczek December 01, 2006
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