1. Sleeping with a blond followed by a redhead, followed by another blond.
2. Sleeping with 2 blonds and a redhead at the same time.
3. Referring to three people, two of which are blond and one of which is a redhead.
4. Two slices of white bread with some marmalade in between.
1: "Would you rather do Jenna, Faye or Pamela?" "Pssh...Why choose? I'll take the whole marmalade sandwich"
2: "Want a PB and J?" "No, I'm good with a marmalade sandwich."
When a man nearing their climax when engaging in sexual intercourse, then proceeds to ejaculate on the top rear section of the women's head resembling a yarmulke/kippah.
While our lifespan is the number of years we will live, our healthspan is the number of healthy years we will have and our sexspan is is the number of years we will continue to be healthy enough to continue having an active sex life.
A lighthearted reaction upon receiving disappointing news of some sort. Usually something that isn't a particularly a big deal, esp. when it primarily affects someone else - sort of a mild schadenfreude. Sometimes doubled or tripled, and possibly said in a sing-songy voice for added comedic effect to imitate a muted trumpet, which is how the meme originated.