(literally) a boat-swallowing fish / (figuratively) a colossal fish / (figuratively) a larger-than-life character/individual

(product development) project

large sum of money, great cost

project (planned endeavour)

cast, throw / invest

(literally) the act of swallowing an entire boat whole

success / success in life, achievement in the world

succeed / be successful in life

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend