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.