2 definitions by The Great Brogan

Ejaculating a load of jizz into/onto someone. Often times it is used in reference to lump sum cum.
I gave her a lump sum donation.

I'd totally give Jessica Alba a lump sum donation.
by The Great Brogan June 2, 2011
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A penile discharge that is one large tad-pole like sperm instead of millions of tiny ones.
Yeah, she blew me, but couldn't handle the lump sum cum and spat it out onto the floor. It wriggled for like five minutes before I had to squash it.
by The Great Brogan June 2, 2011
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