How to make irregular Honey Comb I tried to make this pattern using metaball particles inside volume.
But couldn't acheive this pattern.
DO you know how can I generate a mesh with this porous structure ?
In a regular triangulation of a regular quad topology, vertices connect six edges, and its Dual is a hexagonal mesh..

So as @Leander has hinted in the commentary .. 


Install the shipped 'Tissue' Add-on
CtrlT or use the modifier to triangulate the mesh
Use one of the Add-on's 'Dual' operations.




The regions of the mesh which were quad grids will become hexagonal grids.