spill over

US /spɪl ˈoʊ.vər/
UK /spɪl ˈoʊ.vər/
"spill over" picture
1.

if a problem or bad situation spills over, it spreads and starts to affect other places or situations

:
The conflict in the region could spill over into neighboring countries.
The tension from the meeting began to spill over into the hallway.
2.

if a liquid spills over, it flows over the edge of a container because there is too much of it

:
The coffee began to spill over the rim of the cup.
Don't fill the glass too much, it will spill over.