You all know what innuendo is, it's a subtle insinuation. Generally, it's a bit flirtatious.
Here, the idea is to insinuate something, but don't come out and actually say it. Everyone will assume you're doing this:

when you say it. The idea is to be obscure. You know you can do it -- make the most innocent-sounding words and phrases sound, you know, naughty.
To get us started -
The summer makes me feel ... moist.