crapware found pre-installed in some USB flash drives. it is supposed to be a useful launch pad for portable applications, but instead quickly becomes an annoyance, asking for passwords, bugging down the process, and taking up space.
man, this U3 software sucks, get me a real flash drive
by jorge_andresb January 5, 2008
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<u3 is an expansion to the popular <3 (heart). The addition of the letter 'u' shows the recipient that they are in your heart.
Mike: <u3
Nora: Awww <3333333
by FatKldsLoveCake February 13, 2013
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<u3 means your in my heart

i love you nicole
frankie: hey <u3

nicole: <u3 too.
by elmooooo January 12, 2009
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