(adj.) Something that would be said on the Lifetime Channel. Something said to a guy or by a guy in a public manner that should not be said outloud or in front of others.
"I saw comment you left on Stans MySpace page, dude. Telling him you miss your long talks was so Lifetime."
"Steve had a Lifetime moment last night at the bar when Sheila drunkenly announced on stage that she hopes they will spend the rest of their lives in each others arms and walking side by side."