A description of the random pressing of letters angrily when using instant messenger or chatting, and usually involves hitting of CAPS lock for extra effect. Antonym of happy fingers.
a_special_knome: OMFG i just fond oot our tix wre faxe!!
an_idiotic_haxor: WTF?? R U KIDNG ME!! LAHFDAHVASF AKJ HFKJASH DFKJHS DG CSZKJHGKJA!!
a_special_knome: ANGRY FINGERS!!! AKLHSGZSKFJ SAKJDF AKJHEFKJAHSD !!!!
*could not add more capital letters, because there were too many in the original for Urban Dictionary to handle.