having a comeback or excuse for everything one is told, being smart in the sense of having a smart mouth

行っていらっしゃい: alternative form of いってらっしゃい (itterasshai)

see you later (said by a person staying, a stock phrase required by the Japanese etiquette, lit.: (after) going, come back)

(humble) alternative form of いってきます (itte kimasu)

hard to say, inexpressible, hesitant to say

back and forth

(colloquial) Synonym of 行って来ます (itte kimasu, “see you later”)

to go and come back

not straightforward; not dealt with by ordinary means

Alternative form of 一筋縄では行かない (hitosujinawa de wa ikanai)