A person who interferes with two other people having sexual intercourse simply by their presence. Essentially the same as a cock blocker.
Dude, I totally would have banged that girl at the White Deer, but her fat friend was a total meat shield.
by Pookasydi July 11, 2008
"That meat shield faggot."
by Goder555 March 6, 2016
A condom
by Bud-Wiser2000 May 6, 2023