"Anto fa caldo" if you had the luck to been born in Italy you don't need any explanation, but if you did not probably I own you one: in fact this is a famous Italian ad's claim of the early 2000s
In summary: it's summer and we are in a room with a woman and a man with a strong south accent and they are in the bed all sweating for the hit. The man attempt a move to seduce the lover, but the beautiful woman impatiently rejects him few times with a strong "Antó it's too hot", then the clever and horny Antonio finds a brilliant solution and brings to her companion a bottle of iced tea and then... you can guess.
Needless to say this ad had become a national torment, and wherever you were in the summer, you could hear in every corner some girls teasing their boyfriends with the phrase that was a threat and an invitation at the same time!
If you want to see the spot with sub find it here on youtube