9GAG

49:73:20:74:68:65:72:65:20:73:74:69:6c:6c:20:73:6f:6d:65:20:6b:69:6e:64:20:6f:66:20:61:6e:74:69:2d:39:47:41:47:20:74:68:69:6e:67:20:67:6f:69:6e:67:20:6f:6e:3f
to ASCII

>>>"".join([chr(int(c, 16)) for c in "49:73:20:[...]".split(':')])

46:75:63:6b:20:6f:66:66:2c:20:60:60:66:61:67:67:6f:74:27:27

>>3

011010010111010000100000011101110110000101110011001000000110101001110101011100110111010000100000011000010010000001110001011101010110010101110011011101000110100101101111011011100010110000100000011011010110000101101110

>>2
# TAKING THE FIO OUT OF FIOC #
decode = lambda s: "".join([chr(int(c, 16)) for c in (s if s is not None else raw_input()).split(':')])

encode = lambda s: ":".join([hex(ord(c))[2:] for c in (s if s is not None else raw_input())])

>>> decode(None)
46:75:63:6b:20:6f:66:66:2c:20:60:60:66:61:67:67:6f:74:27:27
"Fuck off, ``faggot''"

>>> encode("NO INDENTATION NECESSARY")
'4e:4f:20:49:4e:44:45:4e:54:41:54:49:4f:4e:20:4e:45:43:45:53:53:41:52:59'