Wordnet 3.0
VERB (1)
1. 
 move upwards in bubbles, as from the effect of heating; 
 also used metaphorically; 
- Example: "Gases bubbled up from the earth"- Example: "Marx's ideas have bubbled up in many places in Latin America"[syn: bubble up, intumesce]
WordNet (r) 3.0 (2006):
bubble up
    v 1: move upwards in bubbles, as from the effect of heating;
         also used metaphorically; "Gases bubbled up from the
         earth"; "Marx's ideas have bubbled up in many places in
         Latin America" [syn: bubble up, intumesce]