What is this

My dog has a lump on his paw at originally started out looking more like a skin tag he ended up catching it on something one day outside it would like crazy now it is 2 to 3 times the size that it was before with a slightly different appearance to it. We didn't turn on taking him to the vet for it unfortunately due to recent family emergency we are trying to figure out about how much time we have to play with on it. So in the meantime I'm doing everything I can to try and get input on what this may possibly be.

Hello!  It sounds as if you've been through a very stressful time and I'm sorry because I can't give you the definitive answer that you are looking for.  I understand that you have contacted several sources in order to work out what this might be, but the fundamental problem with this approach is the word 'might.'  There is a long list of possible differentials, some of them (chewing gum or prosphetics? - because I can't examine it to check) even potentially amusing, ranging through infections, cysts, polyps and foreign bodies / inflammatory nodules right to very serious concerns such as malignant cancer.  However, what it might be makes no difference at all, except sometimes to keep owners awake at night worrying.  The question is whether treatment is appropriate / can be given and for that, the lump needs to be correctly, not speculatively, identified.  If this is the sort of lump that needs to be removed, then the larger it gets, the more difficult removal will be, especially in an area with no spare skin like the foot.  Cancers commonly are non painful but can occasionally become inflamed (which is painful) so the amount of pain associated with a lump rules nothing in or out.  Please do visit your vets as soon as you can because they might want to perform a biopsy.  Wishing you both all the best.

Ps typing the words lump, skin lump, biopsy etc. Into the blog might send you to some helpful articles.