We don't have synonyms for squidging yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are squinting, squirting and squirming.
(n) :
(parachuting) An improper, partial, parachute inflation, that results in the sides of the parachute folding in on the center, and pulsating back and forth. The action of "to squid".
(n) :
(parachuting) An improper, partial, parachute inflation, that results in the sides of the parachute folding in on the center, and pulsating back and forth. The action of "to squid".