Meaning of いけす in Japanese

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Definition of いけす

いけす(ikesu) 【生け簀 ·生簀】

いけすかない(ikesukanai) 【いけ好かない】

(adj-i) nasty; disgusting; disagreeable; creepy
自分と気があわない、いけ好かない、人がいるとします。
Suppose there's some jerk you just can't get on with.