cfti
Cheers for the invite. A colloquial acronym mainly used in the UK, often said sarcastically, though this is not always the case.
Guy: Had an awesome night paintballing with the guys!
Friend of guy (who did not get invited to paintballing): cfti, you know i love paintballing :(
Friend of guy (who did not get invited to paintballing): cfti, you know i love paintballing :(