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1.
short for I really don't care. Used in chat rooms and texting.
Person 1-I am going out to a fancy dinner tonight!
Person 2-irdc
by whoreslut64 June 13, 2009
 
2.
I Really Don't Care
If you don't accept this entry, IRDC.
by Donald Wilson May 11, 2005
 
3.
acronym sometimes used during online chat converstaions for which it means "I 'REALLY' DONT CARE.
more often used acryonym IDC, meaing: I dont care; but the addition "really" gives it more of an intense meaning.
Nicole: OMG, i cant believe i have 3 test tomorrow, i dont know how im gonna do it? cuz today ive had like, THE worst day!

Rachel: (unenthusiastic mood) oh wow, that really sucks.

Nicole: I KNOW RITE?!?!?! And like, i dont think i can like do it cuz ive had this horrible day where these people i dont like, gave me this dirty look. and i was like uhhh! and they were like.......

Rachel: OMG Hold on one sec, IM SORRY BUT, IRDC bout ur freaking probs!!

Nicole: *completely shocked and gets offline in more rage*

Rachel: *speaking to oneself* Thank God.....
by MikaRose November 04, 2010