Meaning of -GRAM in English
-gram /ɡræm/ BrE AmE suffix [in nouns]
[ Language: Latin ; Origin: -gramma , from Greek , from gramma ; ⇨ ↑ gram ]
a message delivered as an amusing surprise:
On his birthday we sent him a kissagram (=a woman who was paid to give him a message and kiss him) .
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012