معنی In tents چیه؟

البته یه معنی slang و غیر مودبانه هم داره، که خود شما میتونید ترجمه ش کنید:👇👇

getting an erection

It's a euphemism for getting an erection whilst in bed, presumably in amorous expectation. The erection represents the tent pole and the tent itself is represented by the sheets/bedclothes.