[Tlhingan-hol] Greetings from Maltz

[Felix Malmenbeck]

> (Has any reason ever been given why {tu'lu'} is sometimes used when
> the grammar demands {lutu'lu'}, or is it just one of those things
> which happen but are never explained?)

KGT pages 168-172 talks about how the omission of lu- is fairly common in colloquial Klingon.

That being said, in the case of tu'lu', the omission does almost seem to be the rule rather than the exception.