When one takes a hit of marijuana so large the resulting cough sounds as if one is participating in the breakdown of a mid-1980's rap.
"Dan hit that J like it was 1986 - started beatboxing."
"That bong hit made Dan sound like he was recording an album with Doug E. Fresh he was beatboxing so bad."
A non-memetic video posted on Youtube and other video websites of a owner making the dog grow and pressing it's jaw making a weird noise. The first video was posted by russian user "Dronkom" with the name "собака Бэ бэ бэээ" (roughly translating to "Buebue dog".) Spin-offs includes remixes, with different genders, such as electronic music to hip-hop and rock n' roll.
Beatboxing dog Drum n' bass, Snopp Dogg Rap Dog, Beatboxing dog rock n' roll version, are all variants of the same original собака Бэ бэ бэээ, posted as beatboxing dog by somebody else a while later.
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.