How about
:
"progress on this project has been imeasurable"
or
"a legend in his own lunchtime"
or maybe
"not that I dislike him, but he is using oxygen my kids might need"
I also like "it all went t*ts up!" (nowadays I tend to use "tango uniform" since I live in a P.C. part of the U.S )
On the bathroom "front" this one gets the wife pi##ed of at me....
"I'm going to see some friends off to the coast".....normally said whilst looking for a good magazine with which to pass the time