overboiling1
/ˌəʊvəˈbɔɪlɪŋ/noun
The action of overboil.
Origin
Mid 18th century; earliest use found in Walter Harte (d. 1774), writer. From over- + boiling, after overboil or to boil over.
overboiling2
/ˌəʊvəˈbɔɪlɪŋ/adjective
Boiling over; (of a vessel) overflowing with boiling liquid. Chiefly in extended use: excessively ardent, fervent, or enthusiastic.
Origin
Late 16th century; earliest use found in Thomas Nashe (d. c1601), writer. From over- and boiling, after to boil over.