Noun. Colloquial abbreviation of Rebecca, as in 'Becky Boo'.
Usually employed when more commonly received Rebecca-derived monikers are considered too sane.
Hoovers all things sugary despite a tendency towards hyperglycaemic lunacy.
Often hilarious, though not always intentionally.
Requires close management and should be exercised off the lead at least twice daily.
Can often be found humping the legs of long-haired males.
"Oh Christ, who let Boo at the crayons?"