2 added 3 characters in body
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It is a slang expression from the 60's:

Bag:

  • To Steal. Example: Who bagged my towel? ;
  • Also; "What's your bag" meaning what's your problem or where are you coming from.

(www.cougartown.com)

For the second sentence it refersmay refer to:

Bag:

  • Slang An area of interest or skill: Cooking is not my bag.

(AHD)

It is a slang expression from the 60's:

Bag:

  • To Steal. Example: Who bagged my towel? ;
  • Also; "What's your bag" meaning what's your problem or where are you coming from.

(www.cougartown.com)

For the second sentence it refers to:

Bag:

  • Slang An area of interest or skill: Cooking is not my bag.

(AHD)

It is a slang expression from the 60's:

Bag:

  • To Steal. Example: Who bagged my towel? ;
  • Also; "What's your bag" meaning what's your problem or where are you coming from.

(www.cougartown.com)

For the second sentence it may refer to:

Bag:

  • Slang An area of interest or skill: Cooking is not my bag.

(AHD)

1
source | link

It is a slang expression from the 60's:

Bag:

  • To Steal. Example: Who bagged my towel? ;
  • Also; "What's your bag" meaning what's your problem or where are you coming from.

(www.cougartown.com)

For the second sentence it refers to:

Bag:

  • Slang An area of interest or skill: Cooking is not my bag.

(AHD)