Based on the fact that last year's title was written in Katakana, and the word for sex is sometimes the loanword "sekkusu", and this says "Rettsu Hinakkusu!" I think it would translate to something like "Let's Hinasex!"
The in-post phrase is even more nonsensical. "Rettsu... Hinakkusu desu," or "Let's... it's Hinasex."
Keep in mind... this is an extreme stretch. But I've seen extreme stretches like this happen before.
Based on the fact that last year's title was written in Katakana, and the word for sex is sometimes the loanword "sekkusu", and this says "Rettsu Hinakkusu!" I think it would translate to something like "Let's Hinasex!"
The in-post phrase is even more nonsensical. "Rettsu... Hinakkusu desu," or "Let's... it's Hinasex."
Keep in mind... this is an extreme stretch. But I've seen extreme stretches like this happen before.
My first interpretation would be that it's a pun on "relax", but this is Hammer, after all.