[1] : WordNet (r) 2.0

swell up
     v : expand abnormally; "the bellies of the starving children are
         swelling" syn: swell, intumesce, tumefy, tumesce
see also:
swell intumesce tumefy tumesce 

Ball Up >> B Words
Ball Up, definition of term: Ball Up
ball+up_pag1.html

Bang Up >> B Words
Bang Up, definition of term: Bang Up
bang+up_pag1.html

Backed Up >> B Words
Backed Up, definition of term: Backed Up
backed+up_pag1.html

Back Up >> B Words
Back Up, definition of term: Back Up
back+up_pag1.html

Ante Up >> A Words
Ante Up, definition of term: Ante Up
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Act Up >> A Words
Act Up, definition of term: Act Up
act+up_pag1.html