One who cheats on her providing boyfriend with many men/women. Generaly refered to as slut, skank, tramp, etc. She may be annoying and have a tendency to whine consistantly. A down right drama queen that makes yours, and everyones lives around her misrable.<a href="http://s196.photobucket.com/albums/aa164/rosebud_96_06/?action=view&current=fathoe.jpg" target="_blank"><img src="http://i196.photobucket.com/albums/aa164/rosebud_96_06/fathoe.jpg" border="0" alt="Photobucket"></a>

by kyerrasimmons December 6, 2008
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1 : showing no gratitude : making a poor return an ungrateful child. 2 : disagreeable also : thankless.
jay: "its ungrateful"
cam: "no its ungreatful dum dum you dont spell great 'grate'"
by queef.eater22 August 15, 2021
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A mental health disorder which causes its sufferes to take advantage of their friends for anything and then turn around an backstab them, sometimes may also cause they to blame their freshly backstabbed friends for backstabbing them when in reality they have just twisted the truth and are true lying peices if work who think they never do wrong
UBS Sufferer: I literally did everything for you

Me: Bitch fuck you I let you live at my crib for days on end, bought you food, clothed you, and took care of your stupid blackout drunk ass nightly and this is my thanks? You saying I took advantage of you? Get on some meds for ungreatful bitch syndrome cause you obviously need it
by GayCloud December 23, 2018
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