I've been using {pe'vIlHa' chop} or {chopchuqmeH wuSDu' lo'} for "kiss".
In light of the recent revelation of the word {lIn} and the term {lInchuq}, perhaps {wuSDu' lIn} might be appropriate?
From: tlhIngan-Hol <tlhingan-hol-bounces@lists.kli.org> on behalf of Rhona Fenwick <qeslagh@hotmail.com> Sent: Tuesday, March 21, 2017 15:08 To: tlhingan-hol@kli.org Subject: Re: [tlhIngan Hol] mu' chu' chabal tetlh!
ghItlhpu' naHQun, jatlh:
> kiss v.
Honestly, there seem to be a lot of people looking for this word when we've got a pretty good circumstantial case that Klingons just don't have this as a distinct part of their courtship behaviours.
We do have {chop} "bite" as well as {rem} "suck" (compare the English slang term "sucking face"), which should pretty much cover the requisite actions beyond {wuSDu'chaj HotchuqmoH}.