1. boil up - Noun
2. boil up - Verb
boil up (plural boil ups)
(cooking, New Zealand) A traditionally Maori soup/stew made with potatoes, pork and other ingredients.
(transitive) To cook or prepare by boiling.
Can you boil up the vegetables while I baste the meat?
(intransitive, idiomatic) To become more excited, intense or exciting.
Source: en.wiktionary.orgWe also have to stop the flow of precursor chemicals that meth cooks use to boil up this poison. Greg Walden
It will boil up and the liquid will quickly evaporate, glazing the almonds with color and flavor. Source: Internet
When Jesse hears this, he knows violence is going to boil up. Source: Internet