尽是

尽是	jìn shì	to be full of / completely
尽	jǐn	to the greatest extent / (when used before a noun of location) furthest or extreme / to be within the limits of / to give priority to
尽	jìn	to use up / to exhaust / to end / to finish / to the utmost / exhausted / finished / to the limit (of sth) / all / entirely
是	shì	to be (followed by substantives only) / correct; right; true / (respectful acknowledgement of a command) very well / (adverb for emphatic assertion)
是	shì	variant of 是