boil
go off the boil pass the stage at which interest, excitement, activity, etc. is at its greatest.
it all boils down to it amounts to or is in essence.
☞ Boiling down a liquid means reducing its volume and concentrating it by evaporation.
1998Times And why are deals getting more complex? Unsurprisingly it all boils down to profit.
lance the boil: seelance.
make your blood boil: seeblood.