Brocked is a slang term, reportedly originating from the Royal New Zealand Airforce, that refers to the act of another aircrew member secretly and sneakily taking away ones allocated flying time or duty.
X's and o's
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The REAL definition behind Xs and Os is this
The first mention in literature of XXX for kisses at the bottom of a letter was in 1901, according to the Oxford English Dictionary. The X itself is very old.The custom goes back to the early Christian era, when a cross mark or X was the same as a sworn oath. The cross referred to the cross of Calvary and the first letter of the Greek word for Christ, Xristos.
Even as little as a hundred and fifty years ago, not many people could read or write. The X at the bottom of a document took the place of a signature. They would kiss the X as a crucifix or bible was kissed to emphasize the importance of the mark. It was this practice that lead to the X representing a kiss.
O is an American thing and represents the arms wrapping around someone.
X's and o's meaning & definition 1 of X's and o's.