... wandering in the temple of immensity

Uncommon idioms are always lurking in the shadows and waiting to trip us up. A student on a course I was teaching last week asked me about the idiom "hunting the dog".  I hadn't heard it before and it was impossible to make anything more than a feeble guess at the meaning.  The idiom "not pulling a full load" used to trouble me, as did "holding your/my/his/her/our/their own". Anyway, it seems to me about time I started to make up my own idioms and try to get them introduced into regular use. From the vocabulary of playing cards "flush the aces" sounds goods. Marketing manager to sales manager. "I don't know what you think, but I think we need to flush the aces on this one." "Reverse the suits" is a bit weaker, but has inherent residual qualities. From sport, "up for a googly", "in sight of the boundary", "securing the blocks" and "swimming with one ear out of the water"  are usable  In politics, "voting with his left leg" and "preemptive presidential precision" could take seed.  Anyway, perhaps it is a waste of space, and I am just treading water whilst wandering in the temple of immensity, awaiting arrival of the flame of destiny or the march of the frozen wastelands.