Headword and gloss are single nouns in the dative plural. Both nouns, discursively translated here, imply actions by those who are willing to stoop to any subterfuge to make a little money. See Hesychius s.v. bwmakeu/masi and the scholia to Aristophanes, Peace 748 (Web address 1). In Aristophanes, Knights 902, probably the genesis of the present entry, Cleon addresses the Demos with the words oi(/oisi/ m' w)= panou=rge bwmoloxeu/masin tara/tteis, translated 'idle trash' at Web address 2.
For altar-ambushers and their altar-wit see also beta 486, beta 488, beta 489, beta 490, chi 296.