1 a small piece of something solid, without a particular shape :
Strain the custard to remove lumps.
Strain the custard to remove lumps.2 a small hard swollen area that sticks out from someone's skin or grows in their body, usually because of an illness :
You should never ignore a breast lump.
You should never ignore a breast lump.3DF a small square block of sugar :
One lump or two?
One lump or two?4 a feeling that you want to cry :
There was a lump in her throat as she gazed at the child.
a lump in/to somebody's throat
There was a lump in her throat as she gazed at the child.5 to accept the bad things that happen and not let them affect you :
According to experts, the company took its lumps but is on the road to profitability.
take your lumps
American English informal
According to experts, the company took its lumps but is on the road to profitability.6 British English spoken someone who is stupid or clumsy :
He's a big fat lump.
He's a big fat lump.