This is a prefix, that is added onto anything that you are doing/having, without permission, when at work, or in some type of lesson, where rules are to be followed.
1) (when workingoutdoors) Scott, go and make us a cheeky-bru whilst the boss is havvin a shit!!!
2) Rite, i'l go and roll us a cheeky-joint in the toilet.
3) I had a cheeky-spliff at work, itz always better when ur not supposed 2 be doin it!!!
Dandyman: I heard you knew how to make an entrance. If I had known you were going to do all this, I would have hung some Union Jacks for you.
Alucard: Hold on! Did you put all this on for me? Who are you?
Dandyman: I am Tubalcain Alhambra or the "Dandyman." I may or may not have fed a lie to the local policia that in return for your capture I would give them immortality.