vamtu -vat- gismu

x1 vomits/regurgitates x2; x1 throws x2 up; [violent] digestive expulsion.

(x2 is non-gaseous); See also rigni, jetce, kafke, sputu.

In notes:

jetce
x1 is a jet [expelled stream] of material x2 expelled from x3.
kafke
x1 coughs/farts/burps up/out x2 [predominantly gaseous] from orifice x3.
rigni
x1 is repugnant to/causes disgust to x2 under conditions x3.
sputu
x1 spits/expectorates x2 [predominantly liquid] from x3 to/onto x4.