Leonardo DiCaprio made the rare move of packing on the PDA with girlfriend Camila Morrone during a wet and wild St. Bart's getaway.

What does PACK ON mean? I can't find it in the dictionary.

Question

Leonardo DiCaprio made the rare move of packing on the PDA with girlfriend Camila Morrone during a wet and wild St. Bart's getaway.

What does PACK ON mean? I can't find it in the dictionary.

Answer

Yes it is interesting that this is not in the dictionary. Pack up and pack in readily comes to mind; also "pack on the pounds" which is American English for gain weight, " He packed on some serious muscle".

Here it means that the couple were showing great love ( or lust) for each other in public. This is displayed through kissing and hugging ( physical intimacy in the public domain)