To roll around in or on anything, while enjoying the hell out of it.
Uncle Scrooge loves wallerin in his big ass vault of gold.
от Crack Bar Waller 25 май 2009
the way a fat nasty woman makes an entrance... (usually used in the southern parts of the US)
damn son! did yall see that fat bitch come a wallerin in the store yesterday?
от j_i_m_b_o 21 февруари 2010